Welcome to the forum brocky88
do you know if your optical drive is cd and dvd or just cd? There is a chance that the software is on a dvd.
There is also a chance that the infection is preventing the install of security software. You can download Spybot search and destroy its free.
I would suggest to dl spybot and also the file below it where it says 'detection updates'. So dl those two files and then disconnect you internet connection, install the main program and then run the detection updates file, then do a scan (with the internet off). Make sure you run a full scan.
If there were a bunch of infections cleaned with that program, I would suggest to also get Lavasofts ad-aware Link Here (also free), choose the free version on the left.