Checklists for software errors, setup, and tool workflows.

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Fix Windows Security App Not Opening Command Prompt

You click the Windows Security icon or try to launch it from Settings, but nothing happens. Or pe...

How to Recover Stashed Changes in Git Detached HEAD

If you've stashed changes while in a detached HEAD state in Git, you might worry they're ...

Docker Container Exits Immediately on Linux: Fixes

You start a Docker container, but it exits immediately. This is a common issue on Linux. The cont...

Docker Compose Environment Variable from Shell Not Working: Fixes

You set an environment variable in your shell, but Docker Compose ignores it. This is a common pi...

Fix Git 'fatal: refusing to merge unrelated histories' on GitHub

You try to merge two branches in Git, and get fatal: refusing to merge unrelated histories<...

Taskbar Icons Missing After Windows Update: How to Restore Them
After a recent Windows update, you might notice that some or all taskbar icons have disappeared. ...