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Re: Windows Defender tray icon just popped up w/ exclamation point and cant get rid o You can to Local Group Policy click Computer Configuration and then the Windows Components tab (Under the computer config tab, not user) Then scroll down to Windows Defender, and enable Turn on definition updates through both WSUS and Windows Update.
See if that helps. You can also disable it and use another anti-virus.
I recommend Avira or avast. |