Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

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Latest checklists

After a Windows update, you may see Explorer repeatedly restarting—the taskbar flickers, desktop ...

You run git pull or git merge and get:

fatal: refusing to...

Fix 'git remote origin already exists' with Wrong URL
You run git remote add origin <url> and get: fatal: remote origin alread...

Fix VS Code 'Permission Denied' When Saving Files
You're editing a file in Visual Studio Code, hit Ctrl+S, and get an error: "Failed to sav...

Fix PyCharm Virtual Environment Not Activating
When you open a terminal in PyCharm and see the base Python interpreter instead of your virtual e...

Fix VS Code Terminal Not Opening Due to Settings
You click the terminal panel icon in VS Code, but nothing happens. The panel doesn't slide up...