Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you move Windows Search to a new machine or upgrade your OS, search results can break, index...

You try to connect to a remote machine and see: Remote Desktop failed to start permission d...

Outlook 404 Not Found Web App: Fixes and Checks
If you're seeing a 404 Not Found error when trying to open Outlook on the web (formerly Outlook W...

Fix Chrome Profile Path Not Found on Mac
If you see a message like "Your profile could not be opened correctly" or "Chrome profile path no...

Fix PowerShell Proxy Error 407: Authentication Required
If you see 407 Proxy Authentication Required when running PowerShell commands (e.g.,...

Fix BitLocker 504 Gateway Timeout on Windows 10
You try to unlock or manage a BitLocker drive and see a 504 Gateway Timeout erro...