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

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fix Windows Update 404 Not Found Using Command Prompt

If you see a 404 error when checking for Windows updates, it usually means the update files canno...

Fix Windows Defender Connection Refused Error 0x80070005

When you open Windows Defender (Microsoft Defender Antivirus) and see a connection refused error ...

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...

Stop Microsoft Teams High Memory Usage in Background

If your computer feels sluggish and Task Manager shows Microsoft Teams using hundreds of MB or ev...

Fix Windows Update Error 0x80070002 (Pending Install Not Working)

If you see error 0x80070002 when trying to install Windows updates that are stuck on "pending ins...