P.S. To those people replying MSE, MSE is NOT Compatible with Windows 8 according to the Windows 8 Upgrade Advisor and will Prompt You to Remove it Before Upgrading to Windows 8. As I said, Avast will run on Windows 8 without needing to do any Tricks like using Windows 8 Compatibility Mode to run the Program and is now actually Certified by Microsoft to run on Windows 8 with out any Major Problems. My Recommendation is to use Avast Internet Security on Windows 8. It runs just fine on it. Just FYI.
...it's not compatible because it's baked into the OS now. So you don't actually need to install, ANYTHING! What a novel concept