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

Fix VirtualBox Kernel Driver Not Installed on Windows 10

How to Fix PowerShell Not Opening on Windows 10

You click the PowerShell icon or type 'powershell' in the Start menu, but nothing happens—no wind...

Fix 'Module Not Found' Error in Microsoft Teams Installation

You're trying to install or update Microsoft Teams, and you see an error like 'Module not found' ...

Fix Microsoft Store Blank Screen with Error 0x80073cf0

You open the Microsoft Store and see a blank white screen, or an error code 0x80073cf0 appears. T...

Microsoft Store Command Not Found: Setup Guide

You try to run a Microsoft Store command (like ms-windows-store: or a PowerShell cmd...

Fix Nginx Config Test Fails with 'upstream host not found'

You run nginx -t and get upstream host not found. The config test fails...