Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see a 404 error in Windows Security or get messages about missing files, the Security Cent...

If you see ERR_TUNNEL_CONNECTION_FAILED in Chrome while browsing on Windows 10, ...

You open Indexing Options, see "Indexing complete" at 99%, and it never finishes. This is a known...

If you see a "token expired" error when using Windows Search, it usually means the search index h...

If you're seeing 'permission denied' when searching for Windows files on your Mac, it's usually b...

You're working in Windows Terminal, and when you try to connect to an Azure resource—like a VM, w...