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

How to Set Up Remote Desktop on Windows 11

Before You Start

Remote Desktop lets you connect to your Windows 11 PC from another devic...

Fix PuTTY Connection Refused After Server Restart

You restart your server, open PuTTY, and see "Connection refused". This is a com...

Windows Update Cleanup: Free Up Disk Space Checklist

After a major Windows update, you might notice your system drive has less free space. This is usu...

Fix PowerShell Not Launching at System Startup

If PowerShell isn't starting automatically when you boot your PC, a scheduled task, startup short...

Nginx 502 Bad Gateway: A Practical Troubleshooting Guide

Seeing a 502 Bad Gateway from Nginx usually means the upstream server (like PHP-FPM, uWSGI, or a ...

Fix Windows Activation Error 0x8007007b SSL Certificate Issue

If you see error 0x8007007b when trying to activate Windows, it often points to an SSL certificat...