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

Windows Activation 502 Bad Gateway: Troubleshooting Checklist

If you're seeing a '502 Bad Gateway' error when trying to activate Windows, the problem is usuall...

Fix OneDrive Sync Port Already Allocated Error

If you see "Port already allocated" when starting OneDrive sync, it usually means another process...

Fix Windows Security Service Failing to Start on Startup

If Windows Security (Windows Defender) fails to start when you boot your PC, you may see a warnin...

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...

Fix 'Run PowerShell Script Command Not Found' Error

When you run a PowerShell script and see “The term ‘’ is not recognized as the name o...

Fix Git Token Expired Error in CMD: Step-by-Step