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

Fix High CPU Usage by MsMpEng.exe (Windows Defender)

If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...

Chrome Fails to Start in Safe Mode: Fixes to Try

If Chrome won't start in safe mode—often used to disable extensions and test clean behavior—you m...

Fix Windows Update Error 0x80070002

When Windows Update fails with error 0x80070002, it usually means the update installer can't find...

Outlook 504 Gateway Timeout: Proxy and Firewall Fixes

If you see a "504 Gateway Timeout" error in Outlook, it usually means a network device (proxy or ...

Fix 'Outlook File Locked by Another User Permission Denied' Error