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

How to Fix Redis Server Not Starting on Ubuntu

If Redis server won't start on Ubuntu, you'll likely see an error message in the terminal or in l...

Fix Chrome Profile Cannot Connect to Proxy Server

When you open Chrome and see 'cannot connect to the proxy server', it usually means your browser'...

Enable Windows Defender After Disabling Third-Party Antivirus

If you've disabled or uninstalled a third-party antivirus and now find Windows Defender is not au...

Fix Windows Search 502 Bad Gateway Due to Proxy Settings

If Windows Search returns a 502 Bad Gateway error, it's often because the search service is tryin...

Remote Desktop Authentication Failed: Troubleshooting Checklist

When you see "Authentication failed" while trying to connect to a remote desktop, it usually mean...

OneDrive Invalid Configuration Sync Issue Fix

Understanding the Problem

You open OneDrive and see an error like "Invalid configuration"...