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

Windows Defender Troubleshooting Checklist for Beginners

Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background, but s...

How to Fix Nginx 502 Bad Gateway Error

When you see a 502 Bad Gateway error from Nginx, it means Nginx could not get a valid response fr...

Fix Windows Security Error 0x80073b01: App Install Blocked

When you try to install a Windows app from the Microsoft Store, you might see error code 0x80073b...

Fix Visual Studio Installer Stuck on Microsoft Visual C++ Redistributable

You start installing Visual Studio, and it gets stuck at 'Installing Microsoft Visual C++ Redistr...

Fix Windows Defender Module Not Found Error 0x80070643