Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you need to connect to a serial device—like a router, switch, or microcontroller—from Windows ...

If Outlook is taking too long to open, send emails, or search, it's usually due to one of a few c...

You may see a notification that Windows Search indexing couldn't start due to an authentication f...

If you get an authentication failed error when sending email in Outlook, the problem is usually a...

If you're using Microsoft apps on a Mac and notice that your settings, purchases, or data aren't ...

If Chrome is acting up—slow, crashing, or extensions misbehaving—you might need a fresh profile. ...