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

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...

How to Change Microsoft Store App Download Path in Windows

By default, Microsoft Store apps install to the system drive (usually C:). If that drive is low o...

Docker Compose Env File Not Found: Troubleshooting Checklist

Avoid Windows Activation Version Mismatch on Reinstall

You reinstall Windows, enter your product key, and get an error: “This product key does not match...

Cloudflare Error 521: Web Server Down Troubleshooting Guide

When you see Cloudflare error 521, it means Cloudflare cannot connect to your origin web server. ...

PowerShell Version Mismatch: A Sysadmin Checklist

You run a script that worked yesterday, and today it throws errors about missing cmdlets, incompa...