Windows 10: Windows Defender will not turn on *SOLVED*

Anonymous
2014-11-18T03:53:50+00:00

I had recently disabled windows defender on windows 10 and when I did I know want to enable it again but when I open action center and press Turn On Now it does nothing. I have pressed it multiple times and with no result.


Fix:

  1. press Windows Key + R
  2. type regedit
  3. locate the following path *HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS DEFENDER*
  4. Right Click this file and select permissions
  5. press Advanced
  6. where it says owner press change
  7. change the owner to your username
  8. Now press applythen ok
  9. select Full Controlfrom the permissions menu

(click the Widnows Defender folder)

  1. Find the value DisableAntiSpyware and DisableAntiVirus and set these values to 0

(explaination: double click each and where the 1 is put 0 and press ok)

  1. Open services.msc
  2. find Windows Defender
  3. there should be 2 services: Windows Defender Serviceand Windows Defnder Netwrok
  4. right click each and press start
  5. after you have started both restart your computer
  6. Run Windows Defend er

I Hope this Helps!

Feel Free to Reply

Windows for home | Windows 10 | Security and privacy

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Anonymous
2014-11-22T09:20:06+00:00

Fix:

  1. press Windows Key + R
  2. type regedit
  3. locate the following path *HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS DEFENDER*
  4. Right Click this file and select permissions
  5. press Advanced
  6. where it says owner press change
  7. change the owner to your username
  8. Now press apply then ok
  9. select Full Control from the permissions menu

(click the Widnows Defender folder)

  1. Find the value DisableAntiSpyware and DisableAntiVirus and set these values to 0

(explaination: double click each and where the 1 is put 0 and press ok)

  1. Open services.msc
  2. find Windows Defender
  3. there should be 2 services: Windows Defender Service and Windows Defnder Netwrok
  4. right click each and press start
  5. after you have started both restart your computer
  6. Run Windows Defend er

I Hope this Helps!

Feel Free to Reply

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  1. Anonymous
    2015-10-06T15:13:30+00:00

    does not work. Step 8 'apply' does not appear.

    step 13 cannot start either of these. error message.

    Windows Defender remains off

    It seems straightforward to me that an error message with instructions how to fix would be appropriate. No wonder people are transitioning to the Mac. OS9 never gave me any problems that I could not easily overcome.

    Bill Kress

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  2. Anonymous
    2015-09-20T02:07:35+00:00

    After I change the owner to my username. I didn't see apply just ok. Then @ permissions menu I didn't see Full Control. I need help.

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  3. Anonymous
    2015-09-18T11:20:55+00:00

    trying to turn ON Defender in windows 10. Followed the advice to find the Permissions file - but it isn't there!

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  4. Anonymous
    2015-09-15T14:32:49+00:00

    Hi,

    This is what I got when I tried to start the Windows Defender in my Windows 10 machine.

    I'm officially got stuck, when I upgraded to Windows 10, installation image didn't detect Microsoft Security Essential , since they are the "same thing " but "not exactly the same thing ".

    I cannot uninstall the MSE, and I cannot enable Windows Defender as well.

    @Microsoft, if you're watching please come up with some patch to fix this problem for us.

    PS: I deleted the old windows 7 file, so I cannot possibly go back and uninstall ; and do not want to lose the data and reinstall also.

    Thank you

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