Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

Windows Defender (now called Microsoft Defender Antivirus) sometimes refuses to turn on or stay o...

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

How to Fix Windows Update Error 0x80070422
If you see error 0x80070422 when trying to run Windows Update, it usually means Windows can’t con...

Fix Microsoft Teams File Locked After Upload
You upload a file to a Teams channel chat or a Files tab, then see a message that the file is loc...

Fix PowerShell Rate Limit Errors with Retry Logic
When a PowerShell script hits an API rate limit, you'll see errors like 429 Too Many Reques...

Fix Chrome Update Error 12: Missing Files You try to update Google Chrome and see error 12, often with a message about missing files. This ...