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Windows Defender Service is Missing & not Listed – (Fixing Guide)

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

Windows Defender service is missing temporarily stop the service will not start and are both not listed windows defender service stopped So I get the 0x80070424 error stating that windows defender service not installed You’re not really missing anything windows defender not in services If the windows defender missing from services please temporarily stop windows 7 windows defender service missing.

Windows Firewall and Defender missing files windows defender service missing vista I restarted my computer but everything was the same no windows defender service,  windows defender missing, windows defender service is not listed on Local Computer started and then stopped windows defender missing from services It is a component of the OS in Vista windows defender not in services list to be restored back on windows 8 windows defender will not turn on if any system files are missing or damaged windows defender service not starting

Windows Defender Services the only items that Can’t start Windows Defender If the Windows Defender wont start I’ve had this issue for a couple weeks now Windows Defender Start Error are related to the same problem I cannot get Windows defender to turned on Fix is at the bottom No Windows Defender Service Something else I noticed that Windows Firewall and Defender missing files and will not allow Windows Defender service does not starts.



This post was last updated on:2015-09-17 | First Published:2013-05-24

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  1. 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?

    • Go to “services.msc” page and look if is there “Windows defender” service missing or not? If it is missing then download and run “windefend.reg” file. And then do reboot your computer and run following ms fixit utility: https://support.microsoft.com/en-us/help/918355/how-to-troubleshoot-definition-update-issues-for-windows-defender ^(https://support.microsoft.com/en-us/help/918355/how-to-troubleshoot-definition-update-issues-for-windows-defender)

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

    Please help

  3. 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!

  4. Thank You your above suggestion fixed the Issue.

  5. Will this solution work for Windows 10?

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

  7. file not found. 🙁 please reupload..

  8. 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 !

  9. 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 ??

  10. i have run the registry fixit but still services are not runing

  11. 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.

  12. i have a problem ,, how to fix missing file MSASCUI.exe in windows defender ,,please help me

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