How to know if your antivirus is working

first open note pad and copy d following

X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*

paste it and and save it as myfile.com

if ur antivirus is fully functional like avast a popup would open and tell u a threat haa been detected but if it is not fully active but working a popup would not open but if u scan it it would detect it...if it dosent detect it den u kno0w sayyyyyyyyyyyyyyyyyy