Checklists for software errors, setup, and tool workflows.

FFmpeg Video and Audio Out of Sync: Practical Fixes

You encoded a video with FFmpeg and now the audio drifts or is completely out of sync. This is a ...

Fix VSCode Extension Host Terminated Error Code 0

What does this error mean?

When you see 'Extension host terminated unexpectedly with erro...

How to Remove the Ubuntu dpkg Lock File

When you see an error like 'E: Could not get lock /var/lib/dpkg/lock' or 'E: Unable to lock the a...

Windows Update Not Downloading: Practical Fixes

You click "Check for updates," the progress bar barely moves, or it stays at 0% for minutes. This...

How to Fix slmgr.vbs High Memory Usage During Windows Activation

If you notice that slmgr.vbs is using a lot of memory (often 100 MB or more) on your...

How to Fix Windows Update Error 404 Not Found

You see error 404 when checking for updates in Windows Update. This usually means the update serv...