Checklists for software errors, setup, and tool workflows.

Fix Docker Build Error: 'failed to solve: manifest not found'

You run docker build and get an error like:

failed to solve: error fetching ...

How to Fix Windows Activation Error 0x803fa067

You might see error 0x803fa067 when trying to activate Windows. This often means Windows can't re...

WireGuard Handshake Not Completing: NAT Troubleshooting Guide

You've set up WireGuard, but the handshake never completes. The peer shows no latest handshake, a...

Fix Windows Security 504 Gateway Timeout After Reset Settings

If you've reset Windows Security settings and now see a 504 gateway timeout error when opening th...

Fix Windows Security Proxy Error After Update

After a Windows update, you might see a proxy error in Windows Security (formerly Windows Defende...

Fix Chrome Profile Download Permission Denied on Mac

You try to download a file in Chrome on your Mac, but you see an error: 'Download permission deni...