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

Fix Windows Search Not Working in File Explorer

You open File Explorer, type a filename or keyword into the search box, and nothing happens — or ...

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...

BitLocker SSL Certificate Error: Troubleshooting Checklist

You're setting up BitLocker Network Unlock or managing BitLocker via Group Policy, and you see an...

Fix Remote Desktop 502 Bad Gateway & Gateway Timeout

If you're seeing a "502 Bad Gateway" or "Gateway Timeout" when trying to connect to a remote desk...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Microsoft Teams Crash Troubleshooting Checklist

If Microsoft Teams keeps crashing on you—closing without warning, freezing, or refusing to start—...