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: press Windows Key + R type regedit locate the following path * HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS DEFENDER* Right Click this file and select permissions press Advanced where it says owner press change change the owner to your username Now press apply then ok select Full Control from the permissions menu (click the Widnows Defender folder ) 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) Open services.msc find Windows Defender there should be 2 services: Windows Defender Service and Windows Defnder Netwrok right click each and press start after you have started both restart your computer Run Windows Defend er I Hope this Helps! Feel Free to Reply

Fix: press Windows Key + R type regedit locate the following path * HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS DEFENDER* Right Click this file and select permissions press Advanced where it says owner press change change the owner to your username Now press apply then ok select Full Control from the permissions menu (click the Widnows Defender folder ) 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) Open services.msc find Windows Defender there should be 2 services: Windows Defender Service and Windows Defnder Netwrok right click each and press start after you have started both restart your computer Run Windows Defend er I Hope this Helps! Feel Free to Reply

Now I get a 577 error trying to start the network service. I hope I have a recovery point for this.

CA: We are all in the same boat. Unable to get Windows Defender turned on. Looks like I must go back to may Mac and wait weeks till Microsoft gets this fixed.

I disabled it through windows defender. it tells me windows defender is turned off No I have not yes build 9879 I had my friend try the same thing on build 9860 and the issue is still there. It is not because of any virus because my system and his sytem are both clean. There is no way to open windows defender and when I go to the action center it says windows defender is turned off . There is a button that says turn on bow when you press it, it does nothing. Sorry for any errors this was type on a mobile phone

Windows 10: Windows Defender will not turn on SOLVED

Anonymous

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:

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

(click the Widnows Defender folder)

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)

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

I Hope this Helps!

Feel Free to Reply

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Answer accepted by question author