If you would like to use something different to the default Windows Defender application you can easily disable it or uninstall it using this ...

How to completely disable Windows Defender on Windows 10? There are several ways to disable Windows Defender on Windows 10, please see the detailed instructions below.

To permanently remove Windows Security, use Local Group Policy Editor, Windows Registry tweaks, or the Windows Defender Remover tool. Be cautious— removal can leave your PC vulnerable.