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

Fix VS Code Git Authentication Failed for GitLab

If you see "Git authentication failed" in VS Code when pushing or pulling from a GitLab r...

Common Causes of Nginx Configuration Test Failure

When you run nginx -t and see an error, it usually means a syntax mistake, a missing...

Git Push Rejected Non Fast Forward: Troubleshooting Checklist

Chrome Sync Not Working on School Chromebook: Fixes

If your Chrome browser isn't syncing bookmarks, passwords, or history on a school Chromebook,...

Windows Security App Not Opening: Practical Fixes

If the Windows Security app won't open—clicking the icon does nothing, or it crashes immediat...

Cloudflare DNS Setup Propagation Not Completing: Fixes

You've updated your DNS records at Cloudflare, but hours later the changes still aren't s...