Knowledge base for software setup, errors, and daily tool work.

How to Fix Windows Security Access Denied on Startup

If you see an "Access Denied" error when Windows Security tries to open at startup, the antivirus...

How to Reinstall Windows Defender in Windows 11

If Windows Defender (Microsoft Defender Antivirus) is missing, disabled, or not working correctly...

Fix Command Prompt Auto Start Not Working After Update

After a Windows update, you might find that Command Prompt no longer opens automatically at start...

Fix VSCode Extension Host Terminated Error Code 0

What does this error mean?

When you see 'Extension host terminated unexpectedly with erro...

Fix Windows Defender Update Error 0x80240034

If you see error 0x80240034 when updating Windows Defender, it usually means the update download ...

Command Prompt Not Working in Safe Mode: Fixes

You boot into Safe Mode to fix a system problem, but the Command Prompt won't open—either it flas...