Knowledge base for software setup, errors, and daily tool work.

How to Fix Cloudflare 521 Error with Firewall Settings

If you see a 521 Web Server Is Down error when visiting your site through Cloudf...

Fix Windows Cannot Access Shared Folder HomeGroup

When you see "Windows cannot access \\ComputerName\SharedFolder" while trying to open a H...

Resolve Git Merge Conflicts in VS Code: Step-by-Step

When you pull or merge branches in Git and both branches have changed the same part of a file, yo...

Docker Container Exits Immediately with Exit Code 137

You start a Docker container, and it exits almost immediately with exit code 137. This usually me...

Fix Windows 11 Update Stuck at 0% – BITS Service Issues

You click 'Check for updates' in Windows 11, and it sits at 0% for minutes or hours. Ofte...

Git Push Rejected Non Fast Forward: Troubleshooting Checklist