If you have installed an antivirus and you are not sure if it is protecting your pc
fully or not? just try this popular test....
open notepad
just type in
"X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*"
(without quotes "")
save this with ".con" extension like: "eicar.con"
scan this file with your antivirus
if your antivirus detects this file- Antivirus is working as it should be...
most antivirus will pop out a message
and if your antivirus doesn't detects it
There's a problem with your installation So, re-install your antivirus