Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

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Jupyter Kernel Not Starting in VS Code: Quick Fixes

You open a Jupyter notebook in VS Code, try to run a cell, and the kernel either hangs on "Starti...

Fix Windows Search Error 0x80070490: Version Mismatch

If you see error 0x80070490 when searching in Windows, it usually means a component version misma...

Fix Microsoft Store 502 Bad Gateway & Permission Denied

You open Microsoft Store and see a 502 Bad Gateway error, sometimes accompanied ...

Fix Windows Terminal ‘Run as Administrator’ Permission Denied Error

You click 'Run as administrator' on Windows Terminal, but instead of a UAC prompt you get an erro...

Fix SSH Host Key Verification Failed on Windows 10

You try to connect to a remote server via SSH on Windows 10 and see: Host key verification ...

Chrome Rate Limit Error Permission Denied: How to Fix
You're seeing 'Rate limit error: permission denied' in Chrome, often when using developer tools, ...