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

Fix Windows Activation Failure Due to Network Issues

When Windows fails to activate with an error mentioning a network issue, it often means the syste...

Windows Defender High CPU Usage After Malwarebytes Installation

After installing Malwarebytes, some users notice Windows Defender Antivirus Service consuming hig...

How to Recover a Deleted Firefox Profile Folder

If you accidentally deleted your Firefox profile folder, your bookmarks, passwords, and settings ...

Practical VSCode Debugger Setup for Node.js

You've written a Node.js app in VSCode, but when you hit F5, nothing happens or the debugger won'...

Fix Windows Defender Error 0x8007042c: Network & Setup Checks

You see error 0x8007042c when opening Windows Defender or during a scan. The message usually says...

Fix MongoDB Authentication Failed Permission Denied Error