McAfee

I would actually highly recommend McAfee AntiVirus. It works on XP still. The only downpour is that you have to pay. They may say "It only works on Win10, Win8, and Win7"
but it really does work on XP (and unrelated it works on Vista too)

 

No, there are still good FREE antivirus, avira, avg, panda, qiho, avast.