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

How to Unlock a File Locked by Windows Security

You try to open or delete a file, and Windows says it's locked by Windows Security. This usually ...

Windows Activation 502 Bad Gateway: Troubleshooting Checklist

If you're seeing a '502 Bad Gateway' error when trying to activate Windows, the problem is usuall...

How to Fix Firefox Secure Connection Failed Error

When Firefox shows a “Secure Connection Failed” error, it means the browser couldn’t verify the w...

BitLocker Recovery Key Not Working After Stuck Loading

You're stuck at the BitLocker recovery screen after a system hang or forced shutdown. You enter t...

Fix OneDrive Sync Service Unavailable on Windows 10

You open OneDrive and see 'Sync service unavailable' with no files syncing. This usually means th...

Fix 'git remote add origin repository not found' Error