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

Fix Windows Activation 502 Bad Gateway Firewall Issues

When you try to activate Windows and see a 502 Bad Gateway error, it often point...

Fix FFmpeg Audio Out of Sync in MP4 Files

If you've encoded an MP4 with FFmpeg and noticed the audio drifts out of sync—voice lagging behin...

Windows Activation Stuck Loading? Try This Checklist

You've entered your product key or see the activation screen, but it just keeps spinning. The loa...

Fix Windows Security Proxy 504 Gateway Timeout Configuration

When Windows Security (Windows Defender) reports a 504 Gateway Timeout error through a proxy, it ...

Fix Microsoft Store 404 Not Found Error on Reinstall