Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Windows Defender Auto Start Not Working in Windows 10

If you find that Windows Defender isn't starting automatically when you boot Windows 10, your sys...

Fix OBS Black Screen and Permission Denied on Windows 11

You launch OBS Studio on Windows 11, add a display capture or game capture source, and see only a...

Fix Windows Security Proxy 504 Gateway Timeout Configuration

When Windows Security (Windows Defender) reports a 504 Gateway Timeout error through a proxy, it ...

UFW Port Forwarding Configuration Example

You need to forward incoming connections on one port to a different internal port or host, but yo...

Fix PowerShell 504 Gateway Timeout Error

You run a PowerShell script that calls a web API, and after a while you get a 504 Gateway...

Fix Windows Update Crashing After Restart – Step-by-Step
After installing updates and restarting, Windows may crash, freeze, or loop on the login screen. ...