Upgrade Windows 7 / 8 to Windows 10 for Free

Use your Windows 7 serial key to upgrade to Win 10 for free (It is still working in 2020)


Last week I tried to upgrade a windows 7 laptop to Windows 10. And surprisingly it is still working without any hassle. Even in 2020 you can upgrade Windows 7 to Windows 10 for free. Though I can not guarantee that it will work for everyone, but there is no harm in giving it a try. If you are installing a fresh windows then you can try using the Windows 7 or 8.1 key. We are providing a step by step guide for the whole process of switching to the new Windows 10.

How to upgrade from Windows 7 to Windows 10?

There are two methods to upgrade to the latest Win 10. In place upgrade and New installation. In place upgrade you can upgrade your existing Windows 7 or Windows 8 to the latest windows 10 keeping all your programs and data intact.


For in-place upgrade you just require a genuine windows 7 installation and Internet connection. And for a new installation you require 1) Internet connection 2) Windows 7 Serial Key 3) USB stick with 8GB capacity.

In place upgrade

Below steps are for an in-place upgrade from Windows 7 to Windows 10. In this process all your data, installed software and settings will be migrated automatically to the Windows 10. Before start, make sure you have enough free disk space before upgrading to Windows 10 in your system drive. Minimum free disk space required for Windows 10 upgrade.

Time needed: 45 minutes.

Update or upgrade Windows 7 to Windows 10

  1. Download media creation tool

    Go to this link to Download ‘Windows media creation tool’. Download the tool.

  2. Select the option Upgrade this PC now

    Run the downloaded media creation tool. It will give you two options to select. Select the first one ‘Upgrade this PC now‘. upgrade-this-pc

  3. Wait while Windows download the required files by Internet then click on ‘Install’ button.

    It may take some time in downloading Windows 10 files from the internet. So it depends on your internet speed that how much time will it take. If you are using a pirated or cracked windows then it may ask for a product key. Otherwise, it will not ask for any license key and upgrade process will go smoothly. After completion of download, click on the ‘Install’ button.

  4. Select “Keep personal files and apps” and then click on Next.

    After clicking on the install button it will ask for what to keep. You can choose data only, data and apps or nothing. By default, data and apps option is selected.upgrade windows 10 image2

  5. Wait while upgrade process finishes

    Click on the next button and it will start the upgrade process and may restart windows several time.

  6. Congrats! Its done! just set the privacy settings on first run

    Congrats, if everything goes smooth you will be welcomed by Windows 10. It will ask you to set the privacy setting of the device on first run. Welcome to windows 10 privacy settings

Watch below video tutorial for easy reference to the upgrade process

How to upgrade / update from windows 7 to windows 10 video tutorial

Switch to Windows 10 with fresh install

If you are not okay with the in-place upgrade and want to install in the different drive or on different device. Using this method you can download the Windows 10 ISO file directly from Microsoft. And it can be installed on a new computer using Windows 7 serial key.


  1. Internet connection
  2. USB stick (8 GB)
  3. Windows 7 serial key if you are interested in Free upgrade or buy a Windows 10 key.

Follow the below steps to create a bootable Windows 10 disk to do a clean installation.

1. Download the Windows media creation tool from the Microsoft website.

2. Download and Run this file. It’s an approx 18 MB file.

3. It will ask for two options – upgrade this PC or download for another PC. Choose second option.

Download Bootable ISO with windows media creation tool

4. Choose  “Create installation media for another PC”. It will ask you to make a bootable USB or download an ISO image. You can later burn an ISO to USB / CD or DVD.

5. We prefer to use the bootable USB. It needs at least 8 GB free space in the USB Stick. After the completion of this process you have a Valid and legal official windows 10 available in your USB drive. Now you can install the Windows 10 on another PC or on a different partition.

6. When it asks for a Serial number or Product Key. Use your Windows 7 Key and it will take without any hassle. (It worked for me in 2019 as well. Let me know if it worked for you in 2019 or not? )

This is an easier method to get genuine Windows 10. So now avoid downloading from torrents or other illegal methods. If this does not work for you then I will recommend you to buy a valid Windows 10 product key from the Microsoft.

Buying Windows 10 is a onetime purchase and you will get the unlimited updates / upgrades. Microsoft announces Windows 10 as the last version and provides it as a service. There will not be next version like Windows 11 etc.


Is windows 7 serial key still works and it is really free to upgrade to Windows 10?

On the launch of the Windows 10 in 2015 Microsoft had given 1 year time to Windows 7 users to upgrade to Windows 10 for Free. Later on, they extended this time and then close the offer. But people are still asking that is there any way to get free upgrade offer? And I can simply answer ‘Yes‘. You can get a free copy of Windows 10 if you already own a Windows 7 key.

It is asking for the product key, and my old Windows 7 key is not working. What to do?

Some times it happened that if you have a genuine Windows 7 key and still Windows installer can throw message like This product key didn’t work. In this case you can try to re-activate Windows 7 first. And then start upgrading again, installer will skip that step. Enter Windows product key

Can I upgrade to Windows 10 with USB in offline mode, without installing from the internet?

Yes, you can just choose “create installation media for another PC” or mount the ISO file to your USB. And then run the installer from the USB. It will copy the files from the USB instead of downloading again from the internet.

Do I need to take the backup? Is there any option to revert to Windows 7?

Taking backup of your important data is a good practice, you should do this on regular basis. Though there is option to rollback to windows 7, but we recommend you to adapt the new system instead of rolling back. There are lots of Windows 10 Tutorials  available online. Always take the backup of important files before starting upgrade process for a safer side.

Can I upgrade from Windows 8 to Windows 10?

Yes, upgrading from Windows 8, Windows 8.1 process is almost same as of Windows 7. You can follow the above steps.

Can I upgrade from Windows XP to Windows 10?

Before upgrading from Windows XP to Windows 10 you should consider two things (1) First you can’t migrate all your data, programs or settings. You need to take the backup of data first. Actually it is like a New installation. (2) Secondly, Your old hardware may be not compatible or insufficient for the new Windows 10. So we advise you to upgrade Windows 10 along-with the hardware.
Please share your experience whether it worked for you or not. Ask freely if you face any error during upgrade.

Can I migrate my HDD to SSD and then upgrade it to Windows 10 as well?

Yes, you can do it easily. You just need to migrate your hdd to ssd. After migrated to SSD, follow the above Windows 10 in-place upgrade process and rock the upgraded Windows 10. You can also move a upgraded Windows 10 to the SSD. See how to migrate Windows from HDD to SSD without loosing your data.

Why will I switch to Windows 10? I am okay with the Windows 7.

Users who still have not switched to the newer Windows 10. I advised them to switch as early as possible as Microsoft has already stop the support for Windows 7.

Can I still use Windows 7 after 2020?

You can use it as long as your antivirus works with Windows 7. Microsoft will never release the security updates for Win7. So you have to rely on your security software.

Can I upgrade Windows 7 to Windows 10 without loosing my files and programs?

Inplace upgrade will do this magic. It will not delete any data file but regarding software it is not guaranteed as some old software which are not updated to support the Windows 10 may not migrate properly. So always check software compatibility before upgrading.

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  1. Periklis says

    Well i did it once again and it worked all right.

    thank you

    1. Techexpert says

      You’re welcome!!

  2. Maurice says

    Hi, I currently upgrading from windows 7 professional on a computer I bought a few years ago, will what you have suggested upgrade to windows 10 professional or the standard edition. Thanks

    1. Techexpert says

      Yes, you’ll get Windows 10 Professional edition if you plan to upgrade from Windows 7 Professional. Hopefully you will get a free upgrade.

  3. Michael says

    Still worked for me today March 9/19! Thanks Techexpert!

  4. K stearns says

    Where do you find the key for a pre installed version of Windows 7. My system came with it already installed with no disc.

    1. Techexpert says

      Download the ProduKey Viewer by Nirsoft which shows you all the installed Microsoft product keys on your computer. See the below Screenshot.
      How to Find Windows Product Key in Windows 7, 8, 10.

      1. Lukas says

        Does the licence type of the windows matter? Like if you have OEM/FPP/OA/KMS/MAK? Can only some of them be upgraded this way (since some are intended for companies)? Thanks if you have any insight into this.

        1. PK says

          I think it does not matter whether you have an OEM license or any other license you are entitled for free upgrade. But because the offer was initially for a limited time and Microsoft have rights to close it any time. So best of luck for your upgrade. Now its time to upgrade as Microsoft is going to end windows 7 support
          You can also contact Microsoft for more details.

        2. Fern says

          Please ignore my previous comment. Turns out I was just being impatient. I had been out for eight hours and it had been processing for an hour or so before that. All it needed was a few more hours and now I have Windows 10!
          Many thanks.

          1. Techexpert says

            Thanks for sharing your experience with us. While upgrading Windows 10, it does update windows 10 in background. Sometimes, it might take hours to upgrade to Windows 10. It depends on your Internet speed. So, we advise all to please let it do what it does.

  5. Bob Smith says

    Don’t you need to boot from USB or DVD to do the upgrade installation.? Can you run the setup in Windows 7? Microsoft says you need to boot to the USB?

    1. PK says

      If you are upgrading from Windows 7 then you do not need to boot from any USB or DVD. In-place upgrade work fine, but internet connectivity will be required. Or if internet connectivity is possible on the PC or have a slow internet connection then you can create a USB or DVD from another computer and it can used to upgrade any PC. You can change the boot from USB or DVD from the boot menu if required.

      1. Bob Smith says

        OK, just to confirm.. IF you are doing an in place Windows 7 to Windows 10 upgrade and DON’T want to run it from the internet, you CAN? run the setup executable IN Windows 7 without having to boot to USB, Correct? I would assume installing from USB would be much faster than doing the in-place upgrade over the internet?

        1. Techexpert says

          Yes, you can easily upgrade your Windows 7 to 10, even if you don’t have Internet connectivity, but you should have Windows 10 bootable DVD/USB/ISO or Windows 10 files in the hard drive. Although, the Windows 10 doesn’t allow you to upgrade your Windows 7 if you boot your computer from windows 10 bootable USB/DVD. The upgrade will work only if you start the Windows 10 setup file from Windows 7 PC.
          Yes, upgrading/installing Windows 10 through USB would be faster than online.

  6. R says

    Warning: do not select x86 and x64 in the same ISO, otherwise you will need a disc that supports 6.8GB of data (DVD Dual Layer). A standard DVD supports up to 4.7GB.

    1. PK says

      It just giving you a warning that you need a high capacity DVD, which have more than 7 GB disk space. Standard DVDs come with a 4.7 GB capacity. Or If you have a standard DVD disk then you can just select one either 32 bit or 64 bit. x86 = 32 bit and x64 = 64 bit Windows. Hopefully we have answered your question or let us know if you have still any doubt. Thanks.

  7. Bingo-gal says

    I upgraded today March 14, 2019 at no cost on my Dell desktop that was running windows 7 home. I did not have to do nothing major only download the windows media creation tool and chose upgrade this pc now just like the directions stated, and let it do its thing (it took a couple hours). Now my computer is upgraded to windows 10 home and running smooth again. Thanks Tech Support for the information I am very happy with my computer again. The only thing was that the upgrade deleted all of my personal files it only transferred all of my software extras, so I figured I would post this so everyone knows ahead of time to make a copy of all your documents, pictures, music, etc. and re install after the upgrade. I already done this ahead of time on USBs. Good luck to you all and I hope you get great results too!! Thanks again for the useful information on this site.

  8. Jeremy Lepel says

    Just worked for me. I tried to use an ISO of the install media I created when the free upgrade was first offered but it rejected my Win7 key. I tried again with the media creation tool and it worked without a hitch and didn’t even ask for a license key and I’m activated.

  9. Glynn says

    Went through the whole process then got a “Windows couldn’t be installed” box right at the end.

    1. Techexpert says

      Hi, We’ll help you to fix this issue. Could you please check if did you get any error code along with this error message? Please see the below screenshot of reference.

  10. Will says

    Still works for anyone wondering

  11. Arnie says

    On March 26, 2019, followed your instructions and replaced Windows 7 on my HP desktop with Windows 10. Installation proceeded without a hitch. Windows 7 was a clean/updated legal copy. Windows 10 incorporated everything that was on 7.


  12. Werner says

    I did the upgrade this weekend and it works exactly as described. I found this site very helpful and I am glad that I found it.

    Just one remark:I had to start the upgrade three times as I did not have sufficient free space on the C: drive. The first time, the upgrade procedure raised an error message, that 10 GB free space were not available. After cleaning up, the second attempt simply ended with a not very specific error. Searching in the web gave me the idea that I had to provide more free memory. With 25 GB free space on C:, the third attempt was successful.

  13. Crystal says

    I’m updating mine from windows 7 home edition to windows 10 home edition and I never made a DVD or anything and it didn’t ask for a product key thanks for the advice

    1. Techexpert says

      You’re most Welcome.
      Thanks for visiting!!

  14. Pierre says

    I have a Surface Pro 3 with Windows 8.1 Professional 64bit. Will this upgrade to the Windows 10 equivalent (Windows 10 Professional 64bit)? I’m guessing it should but I just want to make sure.

    1. Techexpert says

      Yes, Surface Windows 8.1 64bit can easily upgrade to Windows 10 64-bit.

  15. kaela alpha says

    how can i download window 10

    1. Techexpert says

      You’ll have to use a Microsoft media creation tool to download the Windows 10. Please check out this video tutorial on how to download and upgrade.

  16. Evelyn Troper says

    I upgraded from Windows 7 to 10 on my PC and it worked exactly as described. Now I want to help my friend do the same but her copy of Win 7 is not legal. Will it work? Will it ask for a product key? If we follow the advice in one of the FAQs on how to get the product key, will that work?

    1. Techexpert says

      Glad to know that our tutorial helped you.

      No, the upgrade won’t work on a not activated Windows 7. First, you’ll have to activate your Windows 7 before starting the upgrade process.
      Yes, you can get the product key if you want. Using the product key, you can activate your Windows 7 and after that, you can easily upgrade it to Windows 10 OS.

      1. Evelyn Troper says

        Trying to upgrade a friend’s computer from Win 7 Pro to Win 10 but her copy of Win 7 is not legal. I got the product key by following your advice in one of the FAQs and tried to activate Win 7 but got error message saying Invalid Product Key because it’s a default key which cannot be used to activate Windows. Is there any way to activate Windows for free so that the upgrade can proceed? Thank you.

        1. Techexpert says

          This Windows upgrade process won’t be authorized an illegal copy of Windows. Sorry to say, but we don’t have the option to upgrade illegal windows. Even we do not support to use illegal Windows. Always use original windows so that your windows keep up-to-date all the time.

      2. Cindy Meeker says

        I was upgrading several old computers in a kids computer lab last weekend. None of the computers had their Windows 7 activated. I was pretty tired when I got to the last one and forgot to activate Windows 7 before doing the upgrade. I was waiting for it to throw an error so I could go back and activate Windows when, to my surprise, it installed an unactivated (but completely functional) version of Windows 10 without any problems.

        1. Techexpert says

          Thanks for sharing your experience here. Maybe it will ask for activate later. So the outcome is: we can upgrade the non activated windows as well.
          Again Thanks for sharing.

  17. Tony Mitchell says

    Hi everyone..
    Have followed your steps of downloading Media creation tool then upgrading to Windows 10 Professional.
    I have Windows 7 Professional.
    I did the upgrade and it works a treat. No need to type Product Key.
    I have an Asus i7 1st build laptop….Works a treat..
    19th June 2019 Australia
    Thank you for your posts

    1. Techexpert says

      You’re most welcome!!

  18. Fern says

    Thanks for the instructions – they are very clear. I did the in-place upgrade of Windows 7 on my msi laptop. Everything went as you described and it didn’t ask for the product key. During the last stage I had to go out. When I left it was saying it was 27% through the process and that it would need to close down and restart several times. I returned to the blue screen of death! There was no response to any key pressing – I could only think of Esc and Ctrl+Alt+Del. On restarting after a forced shutdown, I got the Windows logo with the loading spinning circle for a short while before the return of the blank blue screen.
    Any suggestions?
    Thank you.

  19. DuWayne Wacha says

    Thanks for this. Before I found this I had already gone to the Microsoft website and was ready to buy Win 10 but decided to do a web search for upgrade information. Did the upgrade from 7 pro to 10 pro today (July 19, 2019) with no problems.

    1. Techexpert says

      You’re welcome!! Thanks for sharing your experience with us.
      Have a great day.

      1. John says

        Thank you for your advise. Downloaded and installed Windows 10 as described perfectly. Upgraded from Windows 7 home.

        1. Techexpert says

          You’re most welcome!!

  20. Richard Hilburn says

    Trying to do this on my Mum’s Lenovo laptop running Windows 7 Premium. Twice it has downloaded, and verified, then it has started “checking for updates” and has got stuck at 46%. Any ideas on how to get past it?

    1. Techexpert says

      Windows Update stuck/failed depends on your Internet speed and your free disc space. So, first of all, make sure your Internet is working fine without any interruption. After that, make sure you have enough disc space to download all the upgrades files and Windows updates files before installing. Please double-click them and try it again.

      If these tips didn’t help you, then follow the below steps.

      1. Use Ccleaner / TFC to clean all the junk files from your computer before starting the Windows 10 upgrade process.

      2. Remove or move all the extra-large files to your backup drive.

      3. Remove all the Windows Update downloaded files from the following location: “C:\Windows\SoftwareDistribution”

      4. Reboot your computer and then try to upgrade to Windows 10 once again.

      If the above steps doesn’t help then reply again.

  21. Nicolas Maignan says

    Much thanks for the tutorial, the In-place Upgrade worked wonderfully props to you.

    1. Techexpert says

      You’re most welcome!! It’s our pleasure to have your appreciation.

  22. Toby C says

    I tried to upgrade my Acer desktop PC (i3 with 3GB RAM and plenty of HDD space) from Windows 7 but got the following message:
    “This PC can’t be upgraded to Windows 10.
    “Your PC isn’t supported yet on this version of Windows 10. No action is needed. Windows Update will offer this version of Windows 10 automatically once the issue has been resolved.”
    Any ideas?

    1. Techexpert says

      In new version 1903 of Windows 10 has changed some installation criteria, that this issue occurred. So please avoid upgrading from the USB stick, use in-place upgrade. Please follow the following steps to fix this “can’t be upgraded issue.”

      1. Remove all the External drives from your computer, including Pen drive, SD card reader, external drive, etc.
      2. Reboot the computer.
      3. Uninstall all the unwanted programs & games from your computer.
      4. Run Ccleaner
      5. Reboot computer
      6. Now you could upgrade to Windows 10 using the in-place method given above.

  23. Maurice Johnson says

    I have windows7 Enterprise and tried to upgrade to windows10 using your method but it wouldn’t work. I got the following message, “This language or edition of the version of windows currently installed on your PC isn’t supported by this tool”. I also tried to create a disk which failed. It created the file ok but then got error message when burning to disk in spite of trying several different disks. Can you help please?

    1. Techexpert says

      In this case, we suggest you to please upgrade your PC through Windows 10 bootable USB drive. Make a Windows 10 USB drive using method 2. Then plug this USB drive to your PC and then double-click on it to open the USB drive and double-click on setup.exe to start the Windows 10 installation wizard. Then choose the upgrade option from there. If you go through these steps, then the language issue shouldn’t come this time.

      1. Maurice Johnson says

        Thanks for the reply, I’ll give it a try. You think language is the problem? That would surprise me, it’s set to UK English !!

  24. Kathy says

    Bless you, Techexpert! After much fretting over this matter, I’ve successfully installed Windows 10 as per your instructions. (August 2019). Thank you so much for your clear explanation and encouragement.

    1. Techexpert says

      Thanks for your application!! It is our pleasure to hear that our instructions helped you.

  25. O Tempora says

    Amazing! 2019-08-10, this worked using a Win7 Pro Dell Vostro OEM, probably ten years old. I did not even have to enter the Win7 serial. System > Settings > Activation shows Windows 10 Pro “activation with a digital license”. Y’all rule! Thanks!
    Next : Acer and HP laptops. Cross your fingers….

    1. Techexpert says

      Thanks for sharing your experience.

  26. JerryHo says

    Like how much of browsing data is needed to complete the upgrade?

    1. Techexpert says

      The Windows 10 upgrade download takes around 4 GB internet data, but after downloaded and installed, it will take more data around 1-2 GB in updating Windows 10 essential update as well. So we can consider 5-6 GB Internet data it requires for the Windows 10 Upgrade.

  27. Bholuwa says

    Assuming I upgraded from windows 7 to Windows 10, if I format d laptop will it still retain windows 10 or it will revert back to Windows 7?

    1. Techexpert says

      If you reformat the computer after upgraded to Windows 10, then your Windows 10 will retain instead of Windows 7. However, you’ll have to keep the Windows 10 key before going to reformat the computer. And after reformat/reinstall the Windows 10, you will have to put that Windows 10 key there.

  28. Jerry Ho says

    Please.. after I upgraded from windows 7 to Windows 10 my Pes game became very slow and it was playing smoothly on windows 7 before d upgrade .. what can I do in dis situation?

    1. Techexpert says

      The very first thing you need to do is Update your Windows until it get updated properly. Second, check your computer’s display driver (VGA Driver) is installed properly – Update the display driver.

  29. Carol Hager says

    I made the USB drive and completed the install w/o difficulty. I did not have to enter a valid Windows 7 key [despite the fact I have one]. Thank you for your invaluable help

    1. Techexpert says

      Your’re most welcome!! Thanks for sharing your experience here.

  30. denny says

    upgrading right now on my windows 7 to windows 10 it process 38%…wish it work soon..:) thank you..from Phiilpine

  31. Donna Schwieder says

    Seemed like all went well after a couple of hours to upgrade my licensed Windows 7 to Windows 10, but at the very end I got a box which said “This PC cannot be upgraded to Windows 10. Your PC is supported yet on this version of Windows 10. No action is needed. Windows update will offer this version 10 automatically once the issue has been resolved.”
    So now what? Thanks for any advice or comment.

    1. Techexpert says

      To fix this “not supported” issue, you’ll have to follow the following steps.

      Step 1: Create the Windows 10 bootable USB from Microsoft Media Creation Tool.
      Step 2: Open the USB drive’s content and then copy all the data to the local hard disk drive like “d:\Windows 10 OS” (You may choose any other location as you preferred)
      Step 3: Unplug all the USB external drives including this Windows 10 bootable USB like: USB stick, External drive, SD cards, and any other drives.
      Step 4: Reboot your computer once.
      Step 5: After reboot, open the location from your computer where you just have copied the Windows 10 files.
      Step 6: Start your setup.exe from Widows 10 copied files, and follow its on screen instructions to install it. This time you should not get the error message. Please let us know if you still get the same error message after follow the steps.

      1. Donna Schwieder says

        Thank you VERY much for the detailed explanation!
        However, I have no idea how to do all that probably easy computer stuff.
        So, I reckon I will have to take my computer in to Best Buy or Office Depot, buy the new Windows 10, and have them install it. Sigh……….
        Thanks again for a reply and so prompt! I appreciate it.

        1. Techexpert says

          You’re most welcome!! Happy to know that your issue has been fixed. Thanks so much for your appreciation.

  32. Adams says

    Just a quick note to say thanks very much for your instructions. I followed them and have been using Windows 10 successfully for the past week or so. Everything from Windows 7 transferred fine. It all took about 3 hours, and I was not asked for any license key. I will certainly use your site again in the event of problems and would recommend any Windows 7 users out there to upgrade using your instructions. Cheers!

  33. Kevin says

    Will it keep.all your personal files when you upgrade??

    1. Techexpert says

      Yes, your files will keep as it is, if you choose the keep option while upgrading. Please see the video tutorial.

  34. David De Coy says

    Hi Techexpert, I have big problems! I hope you can help.
    The first 2 attempts failed @ 81% and 89%. message error(from memory ) 0x1900101 0x4000D
    I had 800gb free and I had already saved all my Documents, Pictures, Music and videos to my expansion drive.
    So on the third try, I thought because I had already saved a Windows backup to my expansion drive aswell, that the Windows backup would save my Firefox browser and all the several hundred websites etc. I also read that apps were causing some people problems with the upgrade. So, the third time I selected personal files, not apps, and not knowing that a browser is classed as an app. Don’t all laugh, take it easy on me, i’m nearly 70 and I thought I did well at first, all day Sunday, over 12 hours. The third try completed at about 1-15am Monday morning.
    A few questions, any easy suggestions? I read that I can uninstall Win 10, revert back to Win 7, within 30 days of upgrade.
    If I do this, will I be able to save my old Firefox browser and websites? Then later, will I be able to upgrade to Win 10?
    Can the Windows backup on the expansion drive help me, will it have the Firefox browser?
    If it helps, I have the original Windows 7 disc, it says, “Intended for distribution with a new PC.
    Sorry for being a pain, for such a long post and all the questions.
    Many thanks

    1. David De Coy says

      I missed out a C in Error message. It should be 0xC1900101- 0x4000D

    2. Techexpert says

      Hi @David De Coy,
      Thanks for sharing your experience with us here.
      Happy to know that finally you have upgraded to Windows 10 successfully.
      Here are the answers to your questions:

      1. Yes, you have an option to downgrade Windows 10 to 8, 7 within 30days. Downgrade option is in recovery settings.
      2. If you choose to downgrade, your data won’t be lost. Your Firefox data stay safe after downgrade or upgrade.
      3. Yes, after that you have an option to upgrade to Windows 10 anytime in the future.
      4. Yes, the backup will work, but If you did backup in Windows 7, so that backup will work on windows 7 only. It depends on how you did back up your Windows 10.

  35. David De Coy says

    Sorry error in my post, should be 10 days to uninstall Win 10 and revert to back to Win 7.

  36. uddin says

    It works perfectly! I did it today (Sept, 11 2019). Thank you so much!

  37. Budiyanto says

    Masih bisa untuk 2 laptop yang saya upgrade. semoga semua bisa berjalan normal.
    Terimakasih sharingnya.

  38. David De Coy says

    Hi Techexpert,
    Thank you very much for your reply.
    I have had a real slice of luck! From deep within my memory from a few years ago, I thought I read that Firefox saves bookmark files to a folder and can be moved to another browser or computer.
    Yesterday, from OS(C:) drive, I started searching through the folders and eventually I found Firefox bookmarksbackups .jsonlz4 file.
    They were the last 15 days of Firefox bookmarks, pre-upgrade. These were not lost in the upgrade, phew, what a relief.

    I then found instructions how to backup and restore them to the present Firefox bookmarks.
    This is what I did and it worked a treat.
    First I had to make a backup of the present Firefox bookmarks and send them to the desk top, just in case things didn’t work.
    The Firefox bookmark backup instruction were:
    In Firefox browser Click on the library button (top right in tool bar) click bookmarks, scroll down to the bottom and click Show All Bookmarks.
    To save existing browser bookmarks, click on Import and Backup, then click backup, then send to desk top. Don’t close Import and Backup.
    Mine says Import, but it might be Restore on some computers apparently.

    To Import my old Windows 7 bookmark backups.
    Open file explorer then click on the following folders starting with:
    OS(C:)\Windows.old\Users\Username\Appdata\Roaming\Mozilla\Firefox\Profiles\then a folder with lots of letters and numbers\another folder with a lot of numbers\then click on \Bookmarkbackups\you should see \ bookmark(date numbers letters).jsonlz4
    In import and backup , click Import, scroll down to “Choose File” click on the bookmark(date you prefer) then click open, the browser should update straight away.
    I am sure there is easier and quicker way, but I was over the moon when it worked yesterday and all the bookmarks just appeared in my Firefox browser.
    I want to thank you so much for reply and your time. Also, putting up all the instructions how to upgrade from Windows 7 to Windows 10. It was very easy to follow, I would not have had the confidence to try the upgrade unless I read all the peoples comments and of course your website. I am very grateful.

  39. Garret Snyder says

    So my update failed, at the very end of the installer. It says I do not meet system requirements, but my PC definitely does meet requirements. It says “We couldn’t update the system reserved partition.”
    I have a Samsung SSD 850 EVO 250 GB hard drive with 80 GB free space. My PC rating is 7.9, I don’t understand how I do not meet the system requirements?

    1. Garret Snyder says

      My SRP is 5GB and needs to be 15 GB free space. So I am trying to do that now lol.

    2. Techexpert says

      Thanks for contacting us,
      One of our visitor (Donna) had facing the same issue. We had suggested him some steps. We request you to please follow the same steps.
      If this doesn’t work then follow the Microsoft solution on this particular issue. Please let us know result.

  40. Wesley Luginbyhl says

    Free upgrade worked for me on October 8, 2019 for my Windows 7 machine. Quick and easy.

  41. Lucas Dawero says

    20.10.2019 100% work. Thanks 🙂

  42. Barbara Griggs says

    Was going along nicely with the upgrade from windows 7 to 10 till it got to updating windows 10. Got up to 35% , didn’t notice if it said anything but the screen went black and has been black for 30mins. It’s not gone to sleep so what should I do or is this normal?

    1. Techexpert says

      No, it is not normal. You should wait for few hours because we should not interrupt Windows update. If nothing happens after few hours then reboot your computer and check what happens after reboot.

      1. Barbara Griggs says

        I had to unplug it and turn it back on. It went straight to a windows 10 sign , then the upgrade which said 85%. Went up to 90% and has been stuck on that for an hour. The screen hasn’t gone black though .

        1. Techexpert says

          Wait some time if doesn’t happen anything then I recommend you to please reboot your computer once more. Make sure the Internet is working properly and with full speed because it need a good speed Internet.

          1. Barbara Griggs says

            Had to unplug computer again as it was frozen on 90% and had been like that for for 6 hrs. Gone back to windows 7. It says failed at second boot during migrate data operation. OxC1900101-Ox4000D fault.

          2. Techexpert says

            We suggest you to please update-to-date your Windows 7 completely before retrying again. Then make sure you have enough free disk space into your hard drive to upgrade. After that, create the Windows 10 bootable USB, and then start upgrading through Windows 10 USB. Click here for more detail how to do.

  43. STEPHEN JONES says

    Thanks for this article. We upgraded from Windows 7 to 10 late on October 22, 2019 with no problems on my SSD boot drive (actually freed up 4 GB on the drive as well). From starting the process to seeing the Windows 10 splash screen for multiple users it took one hour and 30 minutes; including the initial small download and the following large download from Microsoft. Despite having installed Windows 10 inadvertently near the end of the free upgrade period in the summer of 2016 and then rolling it back to Windows 7 the next day (which had me a bit worried about upgrading back to 10) I only had to reconfigure my Realtek audio subsystem software to get the sound working. Quite frankly many of my apps seem snappier in response and performance.

  44. Barbara Griggs says

    Thank you for your help. I have finally managed it so am very pleased.

    1. Techexpert says

      You’re most welcome!!

  45. Mr Mervyn Cooper says

    Thanks for your great advice on 7 to 10 upgrade. It worked a treat.

  46. Julie Serena says

    Yep it worked – Brill

  47. A A L says

    Well,,,,, it worked as of 11/09/19

  48. Bruce says

    Just did this, with complete success!! January 11 2020

  49. Martin says

    Hi, trying upgrade on 13 Jan 2020. Gets so far in Windows 10 setup then sticks at 46% when checking for updates.
    Going to leave overnight…
    Fingers crossed.

    1. Techexpert says

      Okay, thanks for sharing your experience. Please update the status of your Windows 10 upgrade process so that others can help.

      1. Martin says

        Still no joy. Tried the setupdiag exe but it was unable to match to any known failure signatures.
        Trying to upgrade from version of HomePremium Windows 7 but it is an old pc. Plenty memory and i3 processor,
        BIOS updates mentioned in your article. Will try to see how check those. Perhaps updates not loaded previously.
        Though not sure how to do that.

        1. Techexpert says

          It seems like some updates couldn’t download or install properly. So now, try to fix your Windows update issue first. Please follow the following article’s steps carefully.
          After done, and before beginning the update process again, try to update your Windows twice in Windows 7 computer.

          1. Martin says

            Brilliant. That did the job. All hunky dory.
            You techexperts absolutely Rock.

  50. Steve says

    I plan to do a fresh install using the 8gb USB method. Would 16gb be enough partition space to complete the install? I have an extra 12gb partition if I have no other choice which I can use, or perhaps resize. Any advice greatly appreciated.

    1. Techexpert says

      Yes, 16 GB space is enough space for upgrade to Windows 10. Sometimes it requires around 20 GB, it totally depends on “Windows update”. If your Windows 7 is up-to-date then Windows 10 requires even less than 10 GB. So you may go ahead and start the upgrade process with your 8GB USB stick.

  51. Alexandra says

    I waited will the last moment but finally upgraded yesterday. The solution still works, I didn’t have to pay. It did take about 3 hours and a few times I thought my computer froze as it got stuck on a particular “percent ready” number but it eventually resumed. I did have the original registered OEM Windows 7 installed, so I wasn’t asked for the key.

    Thank you for providing this solution.

    1. Techexpert says

      You’re most welcome!! Thanks for sharing your experience.

  52. Orhan says

    I just now finished the in place update and it worked perfectly 🙂

    1. Techexpert says

      Thanks for sharing your experience.

  53. Steve says

    As of 16th of January 2020, still working. I went for the USB download, it took a few hours but went without a single hitch. Now all updated and running well (to my surprise!)

    A big thanks to Techexpert for the help and advice and updating this page in 2020, I’m sure for many of us – who had left it to the last minute to try to do something about the end of support for win 7, like me – you’ve made the transition to Win 10 painless, something I was certainly not expecting a week ago, so cheers!

  54. Stanley says

    Thanks! I thought this wouldn’t work on my old Toshiba laptop because it didn’t work the last time I tried even though my windows 7 is legitimate. But it did! Thanks!

    1. Techexpert says

      You’re most welcome!!

  55. Svet Tour says

    Microsoft is encouraging Windows 7 users to upgrade to Windows 10 before support for the former ends in January 2020. 

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