Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You open Outlook and get an error about a dependency conflict, or Outlook crashes when you try to...

You installed PowerShell — maybe the latest version — but when you type powershell o...

You type a filename into the Windows Search box, but nothing shows up—or only old results appear....

You type a command in Command Prompt and get 'command' is not recognized or Ac...

Fix Windows Defender Proxy Error: Permission Denied
You try to update Windows Defender or run a scan and get an error like "Permission denied"

How to Fix OneDrive Sync Module Not Found
If you see 'OneDrive sync module not found' when trying to start OneDrive, the app cannot find it...