Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You start your PC after a Windows 11 update and get a blue screen, then it rolls back. This artic...

You try to run a Git command and see fatal: Unable to create 'path/.git/index.lock'...

Fix 'Python' Command Not Found in Windows 10 64-bit
You open Command Prompt, type python, and see 'python' is not recogniz...

Fix VSCode Git Authentication Failed on Windows
If you see "Authentication failed" when pushing or pulling in Visual Studio Code on Windo...

Fix npm ENOENT package.json Not Found Due to Wrong Directory
You run npm install or npm start and get an error like ENOENT: no...

Fix VSCode Terminal Not Opening with Python
You try to run a Python script in VSCode, click the terminal tab, and nothing happens—or the term...