Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When the Task Scheduler service stops working, scheduled tasks may not run, or the service itself...

When you try to activate Windows 10, you might see a message like “We can’t activate Windows righ...

If you see an authentication failed error in Chrome on your Mac—often when signing into Google se...

After a Windows update, you might see "Authentication failed" when trying to sign in to the Micro...

If you're having trouble with the Microsoft Store—apps not downloading, updates stuck, or the sto...

If Chrome is crashing, running slowly, or displaying errors on Windows, start here. This checklis...