Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

After restarting your computer to complete a Visual Studio installation or update, you might see ...

When Windows Security shows "Service unavailable" or a red banner, your antivirus and firewall pr...

You open Microsoft Store and see a message about invalid configuration, or your apps won't sync. ...

You open OneDrive and see a 502 Bad Gateway error when syncing files. This usually means a tempor...

If Windows Search stops returning files, returns outdated results, or takes too long, the search ...

When you see Windows Defender error 0x80070422, it usually means the Windows Defender service isn...