[Question About Antivirus and antimalware]

I recently built my first gaming PC and was planning on looking into emulation, but first I wanted to protect it. I've been looking at antivirus softwares and heard that antivirus and antimalware aren't quite the same thing. I'm not sure if I need one but not the other, or if I should look into getting two different softwares. Can someone please explain the difference and point me in the right direction?

[Antivirus and antimalware question]

My first gaming pc is almost ready for emulation, but I'd like to protect it beforehand. I've been looking at antivirus software's, and I've heard that antivirus and antimalware aren't quite the same thing.