Checklists for software errors, setup, and tool workflows.

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2. Isolate

3. Apply

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Latest checklists

When you see fatal: unable to access 'https://...': SSL certificate problem: unable...

Fix Windows 11 Update Stuck at 0% – BITS Service Issues
You click 'Check for updates' in Windows 11, and it sits at 0% for minutes or hours. Ofte...

Fix VS Code Terminal Not Opening with Node
You open VS Code, try to start the integrated terminal, and it either doesn't appear, flashes...

Fix Git 'index.lock file exists' Error
When you see the error fatal: Unable to create 'path/.git/index.lock': File exists....

Windows 11 Update Stuck at 0%: Registry Fix Guide
You click 'Check for updates' and see the progress bar stuck at 0% for minutes or hours. ...

Git Fatal: Refusing to Merge Unrelated Histories – Workaround
You try to merge two Git branches and get this error:
fatal: refusing to merge unre...