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How to Fix Windows Defender File Locked Error 0x80070020

Error 0x80070020 often appears when Windows Defender (Microsoft Defender Antivirus) is scanning a...

How to Fix Windows Terminal 404 Not Found Error

You open Windows Terminal and see a '404 Not Found' error, often when clicking a link or launchin...

Fix Windows Security Settings Not Loading or Resetting

Windows Security (formerly Windows Defender Security Center) may fail to load or reset properly d...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...

Enable Windows Defender in Group Policy Not Working – Fixes

You've configured Group Policy to enable Windows Defender, but it remains off or shows as managed...

Fix Windows Defender SSL Certificate Error

If Windows Defender shows an SSL certificate error, it usually means the antivirus can't verify t...