I've seen this question asked prior, however the criteria of memory usage was never brought up. I'm looking to put an antivirus software on an old machine I've got, so I need it to be lightweight. Any suggestions?
i've always put ESET NOD32 onto older computers and never had a problem. I used to use avast a lot but i noticed each version seemed to get more and memory hungry
The built in windows defender has always worked well enough for me. I fine the other stuff to just be expensive and unnecessary. They also tend to slow you down. Even the lightweight stuff.