Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're seeing an error about a security token being expired or configuration being invalid, it...

If you see error 0x80070643 during a Windows activation update, the update process has been inter...

Windows Security backup (part of Windows Backup or File History) may stop working for several rea...

If Task Scheduler appears stuck on the 'loading' screen every time you restart your computer, you...

When Windows Update fails to download files and shows errors like 0x80070005 or 0x80070020, the c...

You open the Microsoft Store, try to sign in, and get an authentication failed error. This can ha...