Windows Defender crooked off by group policy
Before you can open Windows Defender, you must remove your current antivirus. With an antivirus installed, Windows Defender will remain twisted off (and it should).
Press Win key + R. This will open Run dialog box. Kind ‘gpedit.msc‘ in it and press
If Local Group Policy Editor opens up:
Navigate to Computer Configuration -> Administrative Templates ->Windows Components -> Windows Defender. Double-click on
Turn off Windows Defender locale and set it to Disabled. Press OK and try to open Windows Defender again. If it doesn’t operate, in run dialog box (Win key + R), kind
‘gpupdate /force‘ and press Enter.
If Local Group Policy Editor doesn’t open:
Follow all steps from this wiki-