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

Docker Container Restarting Due to Health Check: Causes and Fixes

Fix Windows Defender Service Not Starting (Error 404)

If you see error 404 when trying to start Windows Defender, it usually means the service executab...

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...

Certbot Nginx Plugin Install Failures: Common Fixes

When you run certbot --nginx and get an error like "The nginx plugin is not working"...

Fix Windows Defender Invalid Configuration Error 0x800705b4

When you see error 0x800705b4 in Windows Defender, it usually appears during an update or scan at...

How to Fix Windows Search 'Permission Denied' Errors

When you try to search for a file in Windows and see 'Permission Denied' or 'Access Denied', it u...