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

How to Disable Proxy for Windows Activation

If you're seeing error codes like 0x80072EE2 or 0x80072F8F when trying to activate Windows, a mis...

Fix Windows Store Error 0x80073cf9 – Setup Guide

When you see error 0x80073cf9 in the Windows Store, it usually appears during app installation or...

Fix Visual Studio Installer Not Responding on Windows 11

If you're on Windows 11 and the Visual Studio Installer stops responding or freezes during launch...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fix Windows Terminal 'File Locked by System' Error

When you try to open or edit a file in Windows Terminal and see "The file is locked by the system...

Windows Defender Real-Time Protection Off but Still Scanning: Fix

You turn off real-time protection in Windows Defender, but scans still run. This can be confusing...