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Fix Windows Defender Can't Connect to Microsoft Server

When Windows Defender shows 'Can't connect to Microsoft server', it usually means the antivirus c...

Fix Windows Security Authentication Error 0x80070035

How to Fix Windows Activation Token Expired Error

If you see the error 'Windows activation token expired' when trying to activate Windows, it usual...

Fix 'Threat Service Stopped' in Windows 10 Defender

If you see a yellow warning in Windows Security that says "Threat service has stopped" or "Restar...

How to Fix Windows Update Stuck at 100%

You've waited for a Windows update to finish, but it's stuck at 100% for minutes or hours. This i...