question

KashifGhafoor-0342 avatar image
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KashifGhafoor-0342 asked ·

windows defeneder stops automatically

something automatically stop the windows defender antivirus. As you can see in the fig.
8288-screenshot-1.png


I have to start the service manually from services application.
8240-screenshot-2.png


Can you please tell me the solution to keep running defender

windows-10-setup
screenshot-1.png (8.0 KiB)
screenshot-2.png (69.6 KiB)
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Ooen the Registry Editor and navigate to the path below:

HKLM\Software\Policies\Microsoft\Windows Defender

If the DisableAntiVirus and DisableAntiSpyware entry are present in the right pane, double-click each entry and change the value data to 0.

Restart your device and see that helps.

But if both entry is not present, then do this, in the right pane, right-click on an empty spot, select New > DWORD, name them as mentioned above. Then double-click on them and give them each a value of 0.


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yagmoth555 avatar image
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yagmoth555 answered ·

Hi

If you have another antivirus installed it might turn OFF Windows Defender, please validate what you have installed.

If you have no other antivirus, please check your event log for further information on the why it closed.

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DSPatrick avatar image
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DSPatrick answered ·

I'd check the system event log for error details about this service.


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TeemoTang-2039 avatar image
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TeemoTang-2039 answered ·

If you installed other third-party security/antivirus software, Windows Defender will disable itself automatically, you need to check this point.

On the Microsoft Community there is a related post about that, that show you can try to troubleshoot this problem. Just try one after the other.

Restart your PC

Remove existing antivirus and antispyware software

Scan your PC for malwares

SFC scan

Clean Boot

https://answers.microsoft.com/en-us/protect/forum/protect_defender-protect_start/problems-starting-windows-defender-in-windows/808253bb-db89-4db9-a4e5-1c91a86489e9

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RAJUMSCMATHEMATICS avatar image
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RAJUMSCMATHEMATICS answered ·

Make sure dependency services should be running before starting of windows defender Service.

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