Checklists for software errors, setup, and tool workflows.

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Windows Security App Not Working After Update: Fixes

After a Windows update, the Windows Security app may fail to open, show a blank window, or displa...

Fix Windows Defender Real-Time Protection Permission Denied

When you try to turn on or off Windows Defender real-time protection, you might see a "Permis...

Fix Docker 'No Space Left on Device' from Log Files

You try to start a container or pull an image and get no space left on device. Often...

Fix VS Code Breakpoints Not Hitting in WSL

If you're debugging a project in WSL and VS Code breakpoints aren't being hit, you're...

How to Fix Git Push Rejected Non-Fast-Forward Upstream

When you run git push and see rejected! non-fast-forward, it means your...