Checklists for software errors, setup, and tool workflows.

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Fix Nginx Upstream Connection Refused Socket Error

When Nginx returns a 502 Bad Gateway or logs upstream connection refused

Fix Docker Desktop Engine Not Running on Windows
You open Docker Desktop on Windows, see the whale icon stuck in the system tray, and the engine s...

Fix Docker Compose Port Already Allocated Error
When running docker-compose up, you may see an error like Error starting userl...

Fix Git 'refusing to merge unrelated histories' Error
When you try to merge two Git branches that don't share a common commit history, Git stops wi...

Fix Windows Update Error 0x80070002 on Windows 10
When Windows Update fails with error 0x80070002, it usually means the system can't find the u...

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...

Checklists for software errors, setup, and tool workflows.

Latest checklists

Fix Nginx Upstream Connection Refused Socket Error

Fix Docker Desktop Engine Not Running on Windows

Fix Docker Compose Port Already Allocated Error

Fix Git 'refusing to merge unrelated histories' Error

Fix Windows Update Error 0x80070002 on Windows 10

Fix Windows 11 Update Stuck at 0% with Service Not Running

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