Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You search for a file by name in the Windows search box, but nothing shows up—even though you kno...

If Microsoft Teams fails to connect, shows a black screen, or keeps signing you out, a misconfigu...

If you're seeing a 404 Not Found error when trying to open Outlook on the web (formerly Outlook W...

If you see an error like "Your server has exceeded the rate limit" or "Too many requests" in Outl...

You're trying to load a website in Chrome, but instead you see: This site can't be reache...

Fix Slow Typing Response Time in Command Prompt
If you notice a delay between pressing a key and seeing the character appear in Command Prompt, i...