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

Windows Defender Connection Refused: Troubleshooting Checklist

You open Windows Security and see "Connection refused" or "Something went wrong. Try reopening Wi...

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...

BitLocker 502 Bad Gateway Error: Causes and Fixes

You're trying to manage BitLocker via the web console or a recovery key portal, and instead of th...

Windows Security Authentication Failed: Troubleshooting Checklist

When Windows throws an authentication failed error, it usually means the system couldn't verify y...

Fix Microsoft Teams White Screen on Startup

When Microsoft Teams loads but shows only a white screen, the app is usually stuck during startup...

Fix NVM Not Found in Git Bash on Windows