Antivirus Pro System How Do I Manually Remove Antivirus System Pro?

How do I manually remove Antivirus System Pro? - antivirus pro system

My computer is completely blocked from the Internet and began to run very slowly. Last night, ads Antivirus System Pro today began to appear and do not let me do on the Internet. I can not download a malware remover that reason, and I can not find any files in that in one part of my team ... Any help would be great! Thank you in advance.