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

Microsoft Store Command Not Found: Setup Guide

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

Fix Windows Activation Error 0xc004c003: Invalid Product Key

When you try to activate Windows and see error 0xc004c003 with the message "invalid product key,"...

How to Fix Git Fatal Repository Not Found Error

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 Windows Security Proxy Error from Antivirus Conflicts

You open Windows Security and see a proxy error, or your system reports that Windows Security can...

Fix Windows Defender 404 Not Found Error on Windows 10

You click to open Windows Defender Security Center and see a 404 page, or the Settings app shows ...