Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see error 0x80070002 when trying to activate Windows or install updates, it usually means ...

When you see a 504 Gateway Timeout error, it means a server upstream (like a proxy or gateway) di...

You see a GitLab Runner job stuck in "pending" status, and the job log shows a "permission denied...

You open Microsoft Store and see a message that your token has expired, or apps won’t sync purcha...

When updating Windows Terminal, you might see an error like Update failed: permission denie...

Fix Windows Terminal 504 Gateway Timeout with Nginx
If you see a 504 Gateway Timeout error in Windows Terminal while accessing a ser...