Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

After a recent Windows Update, you might see a “502 Bad Gateway” error when using Windows Search....

After a recent Windows update, you might see a network error when using Windows Search—for exampl...

If you see a message like "File locked by extension" in Chrome, it usually means an extension has...

After a Microsoft Teams update, you might see a "connection refused" error when trying to sign in...

You're trying to open Chrome and see an error like 'Your profile could not be opened corr...

Outlook Troubleshooting Log File Checklist
When Outlook acts up—connection errors, startup failures, or sync problems—the built-in log files...