
Enable Windows Defender After Disabling Third-Party Antivirus
If you've disabled or uninstalled a third-party antivirus and now find Windows Defender is not au...

If you've disabled or uninstalled a third-party antivirus and now find Windows Defender is not au...

If you see activation errors like “Windows is not activated” or “We can’t activate Windows on thi...

You click the Microsoft Store icon in the Start Menu, but nothing happens—no window, no error. Th...

You open Windows Security, click on Virus & threat protection, and get a blank page or a 404 erro...

You click "Check for updates" and see error 0x80072F0D or a message like "A certificate chain pro...

You try to open, move, or delete a file, and Windows tells you the file is locked by Windows Defe...