Yeah I tried playing Left 4 Dead 2 and it gave me an error. That error is linked to real time scans being enabled, which I wanna disable temporarily to play L4D2. But the security center won't let me access those settings, although I can with every other setting.
I am the system administrator/only user on my computer. Even though I don't use it Internet Explorer works fine. I do have some other anti virus programs however.