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

Fix VSCode Extension Host Terminated Error Code 0

What does this error mean?

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

Windows Security App Keeps Crashing: How to Fix It

If the Windows Security app crashes or won't open, you're not alone. This guide covers practical ...

Fix Windows Defender High CPU Usage When Scan Stuck

If Windows Defender is using nearly 100% CPU and a scan appears stuck (e.g., progress bar frozen ...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fix Windows Defender Stuck Loading Service Not Running

If you open Windows Security and see 'Windows Defender Service not running' or it hangs on a load...

Fix Windows Defender Error 0x80070422: Won't Turn On

If you see error code 0x80070422 when trying to turn on Windows Defender, it usually means the re...