Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Windows Update Error 0x800f0905 on Mac

When running Windows on a Mac—either through Boot Camp or a virtual machine—you might encounter u...

Fix Windows Search Indexing Stuck at 99%

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

How to Fix Task Scheduler Proxy Error

If you see a proxy error when running a scheduled task, it usually means the task cannot reach th...

Fix Microsoft Teams Proxy Error Not Connecting

If you see "proxy error" or "not connecting" in Microsoft Teams, it usually means the app can't r...

Fix OpenSSL Certificate Errors in Command Prompt

When using OpenSSL in Command Prompt (cmd), you may encounter certificate errors like unabl...

Fix Windows Terminal Alternatives Not Working on Mac
You installed a terminal emulator designed for Windows—like Windows Terminal, Cmder, or ConEmu—on...