I would recommend eScan Total Security Suite but your Windows XP should at least have the Service Pack 2 for it to work
https://www.escanav.com/en/windows-antivirus/total-security-suite.asp
If you do not have the service pack, you could use 360 Total Security
https://www.escanav.com/en/windows-antivirus/total-security-suite.asp
If you do not have the service pack, you could use 360 Total Security