Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

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Fix Microsoft Store 502 Bad Gateway Error

You open the Microsoft Store and see a blank page with a 502 Bad Gateway error. This usually mean...

Fix Windows Activation Command Not Found Error

You try to run slmgr /ato or slmgr /ipk in Command Prompt, but Windows ...

Fix Windows Terminal High CPU Usage and Error Code

You open Windows Terminal and notice your system fan spinning up or the Task Manager shows Window...

Fix 'Connection Refused on Port 80' in Command Prompt

When you see "connection refused on port 80" in Command Prompt, it usually means no program is li...

Fix 'Java JDK Not Recognized' in IntelliJ IDEA

You open IntelliJ IDEA, try to create or import a project, and get an error like “JDK not fou...

Microsoft Store Not Downloading Apps: Fixes That Work
When the Microsoft Store refuses to download apps, you'll usually see a spinning circle, stuck pr...