Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If Outlook starts misbehaving after a crash, update, or add-in install, you might see errors, mis...

If Chrome shows an error saying it's unable to open your profile, you can't access bookmarks, his...

When you try to restore a Windows backup, error 0x81000019 can stop the process. You might see th...

When you see "command prompt update failed setup" during a Windows update, the i...

If you see error 0x80090016 when using Windows Search, it usually means the search index or a rel...

When Microsoft Teams fails to start or connect, you may see errors about a port already being all...