I actually stopped with these expensive Antivirus Programs a long time ago. Instead I got my self Paragon Hard Disk Manager. Making healthy images of my whole system once in a while. In case of a suspect of infection I can restore  the whole system in less then 20 min without breaking my head on what I got eliminating all threads. Also works to just load the whole system on a new computer if hardware fails in less then an hour.

You might just try Uninstalling that antivirus replacing it with Avira Free or something similar, spending your money on a Hard Disk Manager  rather then experiencing to spend allot for a antivirus program that slows down your system causing more damage then a virus ever could do. Your best weapon against a Virus is a good HD Image

I also keep a Full system mirror on a secondary SSD drive just in case making it fast to replace ( Plug and Play ) The damaged one gets formatted and and used as new backup ( No Headaches and no risk of a heart attack )