Checklists for software errors, setup, and tool workflows.

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Git index.lock File Exists Even After Deleting: Fixes

You delete the .git/index.lock file, but Git still says it exists. This can happen d...

Understanding Git Merge Conflict Markers: A Practical Guide

When you merge branches in Git, you may encounter conflict markers in your files. These markers s...

Windows 11 Installation Assistant Stuck at 99% After Restart

You've run the Windows 11 Installation Assistant, it reached 99% after restart, and now it...

Docker Container Exits Immediately with Volume Mount – Fixes

You start a Docker container with a volume mount, and it exits immediately – no error, or just a ...

Git Merge --allow-unrelated-histories: When and How to Use It

You run git merge and get an error: fatal: refusing to merge unrelated histories...

Fix Wi-Fi No Internet on Windows 11 Without Restarting Router
You connect to Wi-Fi, the icon shows internet access, but browsers say no internet. Restarting th...