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

Microsoft Store File Locked: Troubleshooting Checklist

When you try to install or update an app from the Microsoft Store and get an error about a file b...

Nginx 404 Not Found Troubleshooting Checklist

When nginx returns a 404 Not Found error, it means the server is running but cannot locate the re...

MongoDB Compass Connection Refused Due to Firewall: Fixes

You open MongoDB Compass, enter your connection string, and get connect ECONNREFUSED...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Fix Edge Profile Sync Paused Not Working After Update

After a browser update, you might see Edge profile sync paused and not working. This usually happ...

How to Fix Outlook 'Connection Refused' Error from Antivirus Blocking

If you see a 'Connection refused' error in Outlook, especially when sending or receiving email, y...