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

Fix PowerShell 502 Bad Gateway Caused by TLS Version Mismatch

If you see a 502 Bad Gateway error when running PowerShell scripts that call web...

Fix Windows Defender Service Missing After Antivirus Uninstall

After uninstalling a third-party antivirus program, some users find that Windows Defender is miss...

Fixing GitHub Actions Permission Denied for Git Commands

Microsoft Store App Installation Failed: Practical Checklist

You click Install in the Microsoft Store, and after a long wait you see “Installation failed” wit...

Chrome Service Unavailable: Troubleshooting Checklist

When Chrome displays a 'Service Unavailable' error, it usually means the browser cannot connect t...

How to Fix WireGuard Handshake Not Completing

If your WireGuard tunnel is stuck at "handshake did not complete," the connection never establish...