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

Fix Windows Defender 502 Bad Gateway Permission Denied

If you're seeing a '502 Bad Gateway – Permission Denied' error when using Windows Defender (Micro...

Fix PowerShell Connection Refused Due to Firewall Rules

When you try to connect to a remote system using PowerShell Remoting (WinRM) and get a "connectio...

Fix Chrome Blank Profile Screen After Update

After a Chrome update, some users see a blank screen when trying to open their profile — no bookm...

Chrome SSL Protocol Error After Update: How to Fix

After a Chrome update, you might see an SSL protocol error when visiting secure websites. The err...

Configure Windows Terminal to Trust a Self-Signed Certificate

If you're using a self-signed certificate for HTTPS on a local server or test environment, Window...

Command Prompt Setup Guide for Beginners

What is Command Prompt?

Command Prompt is a text-based interface in Windows that lets you...