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 ...

Fix Microsoft Store Blank Screen When Other Apps Work

You open the Microsoft Store and see nothing but a blank white or gray screen. Other apps—Edge, O...

Windows Update Cleanup Stuck: Troubleshooting Checklist

You run Disk Cleanup, select Windows Update Cleanup, and it hangs for hours. Thi...

Fix Windows Security Connection Refused Due to Antivirus Blocking

You try to open Windows Security or run a scan, and get a 'connection refused' error. Often this ...

Fix Windows Activation Module Not Found Error

When you see 'Windows activation module not found' while trying to activate Windows, it usually m...

Fix Windows Security Authentication Failed Event ID 4625

If you're seeing Event ID 4625 in Windows Security logs, it means an account failed to log on. Th...