How to fix when Windows Defender Service is Missing


I have a problem in windows defender When i got to start it, it says please turn on “Windows Defender” Service and when i go to service.msc however the system don’t have “windows defender” service, Where is my Windows defender, I know that the Windows 7 has Windows Defender service, please help me to get it back ?

Solved Answer

Actually, you system have lost windows defender service from registry as well, first you have to create windows defender service manually or you have to merge Windows defender default registry .reg file. We are providing you a default registry file for windows 7 / Windows vista it’d work for both. please follow the below instruction.

Automatic Fix it.


Fix it myself manually

Here is the default registry of Windows Defender

Download Microsoft Fixit for diagnose it automatically

Download this Default Windows Defender .reg file windefend.reg and merge it into registry.

  • Download this .reg file windefend.reg and just double click on it to execute and merge into registry.
  • Then restart your computer once.

It’s all done your issue will be Fixed.


Related Searches

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25 thoughts on “Windows Defender Service is Missing & not Listed – (Fixing Guide)”

  1. Hello!
    I’ve got same problem but on Windows 10 and this is not working atm on this platform.
    There is an error msg “Canot import C:\Users\Computer name\Desktop\Windefend.reg: Error accessing the registry”

    1. Please do this in safe mode if it works there. Alternatively, open the Registry editor (regedit) with administrative privileges and then import that “.reg” file from there. Please let us know if both tricks did not work for you.

  2. The fixit link/download does not exist.
    Did the rest, all it does is change the name from windefend to windows defender.
    Still cant start or anything.

    1. Download this .reg (windefend.reg) file and simpley do double-click on this downloaded file to merge it to your registry. Then do reboot your computer and then check your windows defender service should came back. Please this doesn’t work then please let us know with more detail.

  3. Windows defender folder is missing in gpedit.msc & regedit. I cant turn on my windows defender, it says “this app is turn off and isn’t monitoring your computer”. What should I do?

  4. There is an error msg “Canot import C:\Users\Computer name\Desktop\Windefend.reg: Error accessing the registry”

    Please help

  5. friend’s win7 PC managed to have a virus that got rid of defender.. was just missing this regkey. always apprehensive when downloading a regkey from the net but initial gander via a text file looked good, and it worked well. service started straight away.

    for info: i run Win10 and the WinDefender key on my rig DID NOT work on his win7 rig, many differences in the keys. therefore not interchangable. always good to know 🙂

    thanks for offering this help guys, very useful as i didn’t have another win7 machine in the house!

    1. We have not tested this into windows 10 yet. It shouldn’t work because it made for windows 7. You can try this after making a registry backup.

    ALL day I Searched for solve my problem ANd I Have Find it at last!!
    DEfender is working now!! I LOVe YOU!

    1. Thank you for get in touch with us for this matter. We have checked it that the link was broken and we just have fix it and the link is up now. Download it please now.

  7. Dear Experts ,
    i am using windows 8.1 and can’t use windows defender because it’s services doesn’t work properly named ” Windefend and WdnisSvc” i got the error . even also i can’t install other anti virus software ……. so what should i do please please help me !

  8. After I have download and run MSfixit, the step is still in the “Checking for updates online…” like forever. Is there something wrong with it ??

  9. My windows says its was not possible to import the registry to restore the windows defender service because or it was in use or i didn’t had the permissions to do it, i’m in an administrator account but it seens impossible to re-enable him through actions center and his service isn’t listed.

    1. You need to run MSfixit for permission issue first and then update that registry. You also re-permit the registry permission manually.

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