Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Windows Defender Real-Time Protection Not Starting

If you see a yellow warning or a message that real-time protection is off, Windows Defender’s cor...

Chrome Extensions Not Loading on Windows 10: Quick Fixes

If your Chrome extensions suddenly stop loading or appear grayed out on Windows 10, it's usua...

Fix 'fatal: refusing to merge unrelated histories' in Git

You cloned a repository, made some commits locally, and now when you try to git pull...

Fix Firefox Secure Connection Failed After Update

After a Firefox update, you might see a "Secure Connection Failed" error when visiting we...

How to Fix Git Index Lock File Exists Error

If you see an error like fatal: Unable to create 'path/to/repo/.git/index.lock': Fi...

Fix Windows 11 Update Stuck at 0% with Service Not Running
You click Check for updates, see 0% for ages, and maybe an error like 'Windows Update service...