Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you migrate Windows to a new drive or system, update problems often surface. This guide walk...

You upload a file to a Teams channel chat or a Files tab, then see a message that the file is loc...

You're trying to connect to a remote desktop through a web proxy and you see a 502 Bad Gateway er...

If Windows Defender is not running or you see errors like “Threat service has stopped,” the under...

If you've signed into Windows with your Microsoft account and notice that Defender settings—like ...

You've downloaded the Microsoft Teams offline installer but double-clicking it does nothing—or ma...