I don't recommend that anyone download the UAC2 Anti-Cheat program just yet. I downloaded and installed it three days ago and came back from my holiday yesterday with my computer giving me the BSOD (Blue Screen of Death) and programs crashing. I figured it was UAC2 so I uninstalled and know I have no more problems, since UAC2 is still in the making. It's not a good idea to install it.