Checklists for software errors, setup, and tool workflows.

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Fix Git 'index.lock' File Exists Error in IntelliJ

If you see an error like fatal: Unable to create 'project/.git/index.lock': File ex...

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

Fix Windows 11 Installation Assistant Stuck at 99% SFC Scan
You're upgrading to Windows 11 using the Installation Assistant, and it hangs at 99% while ru...

Fix 'npm permission denied' in VS Code Terminal
When you see a 'permission denied' error in the VS Code terminal while running npm comman...

Fix VS Code Source Control Not Detecting Changes in Subfolder
You open VS Code, see changes in the root folder, but the Source Control panel shows nothing for ...

How to Fix Git Detached HEAD Error
You run git status and see "HEAD detached at" followed by a commit hash. Thi...

Checklists for software errors, setup, and tool workflows.

Latest checklists

Fix Git 'index.lock' File Exists Error in IntelliJ

Fix VSCode Git Authentication Failed on Windows

Fix Windows 11 Installation Assistant Stuck at 99% SFC Scan

Fix 'npm permission denied' in VS Code Terminal

Fix VS Code Source Control Not Detecting Changes in Subfolder

How to Fix Git Detached HEAD Error

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