Was browsing today and all of a sudden I got a pop up..then another and another telling me I had lots of trojans and if I clicked on something I could remove them. I did click but I didnt download anything or buy anything. I immediately found that my task manager had been disabled because I tried to bring it up to cut out this program. I ran Panda, Spybot, Adaware, A-Squared and trial version of prevx; Lots of small stuff was found buyt the trial prevx brought up these two threats:
sa7236.exe and an updater package. I recognised the latter fromt he thing that i clicked when these trojan warnings flashed up. Now I am not sure if my pc is safe. I managed to get my task manager back with combofix. Otherwise I am out of ideas and when I google this problem its looking pretty dire. can anyone help me please? Thanks

Ps I ran HJT and saw a couple of no name buttons but I couldnt delete them because it gave me a error message something to do with hosts???