Checklists for software errors, setup, and tool workflows.

Fix Git 'index.lock file exists' Error

If you see fatal: Unable to create 'path/.git/index.lock': File exists. when...

Windows Security App Not Opening as Administrator: Fixes

When you try to open the Windows Security app and it fails to launch, often with no error message...

Fix Windows 11 Installation Assistant Stuck at 99% Registry

If the Windows 11 Installation Assistant gets stuck at 99% while processing registry entries, you...

Fix npm ENOWENT Package.json Not Found on Mac

If you see 'ENOENT: no such file or directory, open /path/to/package.json' when running n...

Fix VSCode Terminal 'Permission Denied' on Windows

If you see 'permission denied' in the VSCode integrated terminal on Windows, it's usu...

Fix Python UnicodeDecodeError 'charmap' Codec

You're reading a file in Python and get:

UnicodeDecodeError: 'charmap' ...