System security

Hello,

I have a huge problem with this program called System security!

Yesterday, as I was surfing, that program System security just poped out of nowhere and started scaning! I did not wont that program! I did not even hear of that program until yesterday! Now, that program shows that i have several viruses, trojans, and other malware! Now, I have Bit Defender as a anti-malware program, and also Ad-Aware, but both of them do not wont to start! Every time I start one of them I get a message saying that they are infected, and that they can't start because of that! Also, when I go to Control Panel, and I wont to open anything there, I also get a message that they are infected, and that they can't oped because of that! What can I do? How can I remove that program System security?

Thanks for your help in advance!