The short article just to confirm Antivirus does come with Windows 10.
There is an IT Pro ask me few days back “Is Antivirus come with Windows 10?” You can have free Antivirus since Windows 7.
The Antivirus in Windows 10 is part of the Windows Defender. Today just Antivirus just caught a virus for me, see the screen below.
So you really do not need to put any unnecessary Antivirus into your Windows 10 even you are rich.