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

Fix Windows Activation Backup Restore Failure After Update

After a Windows update, you might see an error when trying to restore an activation backup. The b...

Windows Security 502 Bad Gateway: Troubleshooting Checklist

If you see a 502 Bad Gateway error when opening Windows Security, it usually means the app can't ...

Fix Microsoft Teams Stuck on 'Loading' or Not Responding

You open Microsoft Teams, and it hangs on a blank screen with a spinning loader or shows 'Not Res...

Fix GitHub Actions Docker Push Permission Denied

How to Fix 'File Locked by Another Process' Error in PowerShell

When you run a PowerShell command that reads, writes, or deletes a file, you might see an error l...

SSL Certificate Error in Windows Defender: Troubleshooting Checklist

If you see an SSL certificate error when Windows Defender tries to update or scan, it usually poi...