Checklists for software errors, setup, and tool workflows.

Fix Windows Update Blank Screen with No Cursor

You install a Windows update, reboot, and instead of the login screen you see a blank display wit...

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 Update Stuck on Checking for Updates

If your Windows Update has been stuck on 'Checking for updates' for more than 15 minutes, you're ...

Find Windows Update Log Files Using Command Prompt

When Windows Update fails or behaves unexpectedly, the log files often hold clues. You can access...

Windows Defender 502 Bad Gateway: Troubleshooting Checklist

If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...

Fix Windows Defender 502 Bad Gateway Sync Error

If you see a "502 Bad Gateway" error when Windows Defender tries to sync, it usually means a temp...