Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're uploading or downloading large files over a slow or unstable network, OneDrive may time...

If Task Scheduler tasks fail to run, show errors, or behave unexpectedly, a corrupted or stale ca...

You see an error like "Some update files are missing or have problems" or a specific error code s...

If you see errors like 'This app can't open' or 'Try that again – something happened on our end' ...

You may see “Task Scheduler service is unavailable” when opening Task Scheduler, or scheduled tas...

Windows Update can fail for many reasons. This checklist walks you through the most common fixes,...