Need a antivirus recommendation

[Ceee9]

Someone help me recommend an antivirus,
with all the basic feature(malware an such)
and most importantly antivirus that can stop treat from connecting usb(pendrive,external hdd, etc)
and free and not to heavy

 

[Ceee9]

i currently using bitdefender, kinda good, just i not really know control the anti virus yet...