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

How to Fix Windows Search DNS Error

If Windows Search returns no results or shows a DNS-related error, it's often due to network misc...

Fix Windows Activation Proxy Server Error

When you try to activate Windows and see an error about a proxy server, it usually means the acti...

Fix BitLocker Rate Limit Error on Windows 10

If you see a rate limit error when trying to unlock or manage a BitLocker drive on Windows 10, it...

Fix Microsoft Teams 502 Bad Gateway Error by Clearing Cache

If you see a 502 Bad Gateway error in Microsoft Teams, it often means the app's ...

How to Fix 'npm command not found' on Mac

Fix Windows Update Authentication Failed / Permission Denied

When Windows Update fails with an "authentication failed" or "permission denied" message, it usua...