Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

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Latest checklists

When you run a command in Command Prompt and get a proxy error like ERROR: Cannot find prox...

Fix Microsoft Teams File Locked Not Opening
When you try to open a file in Microsoft Teams and get a “file locked” or “this file is locked fo...

How to Fix Windows Search Proxy Error
If you see a proxy error when using Windows Search, it usually means the search feature is trying...

Fix Chrome Profile 404 Error on Windows 11
You open Chrome on Windows 11 and see a 404 error related to your profile. The browser may fail t...

Fix Outlook Module Not Found Error 0x80040154
You open Outlook and get an error: 0x80040154 — "Class not registered" or "module no...

Fix Windows 11 Update Stuck on Downloading
You click 'Check for updates' and see the progress bar stuck at 0% or a percentage that doesn't m...