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

How to Fix Windows Defender Proxy Error on Windows 10

You open Windows Security and see an error: "Your IT administrator has limited access to some are...

Certbot Renewal Failed Due to Nginx Configuration: How to Fix

Fix VSCode Remote SSH Permission Denied (Public Key)

When connecting to a remote server via VSCode's Remote SSH extension, you may see the error 'Perm...

MySQL Connection Refused on Port 3306: Causes and Fixes

If you're seeing "connection refused" when trying to connect to MySQL on port 3306, the MySQL ser...

Fix Microsoft Teams Connection Timeout and Permission Denied

If you see "connection timeout" or "permission denied" when launching Microsoft Teams, the app ca...

Remote Desktop High CPU Usage: Practical Troubleshooting Checklist

If you're connecting to a remote machine and notice the CPU is pegged at 100% or near it, the pro...