Why would you even install Windows 8?
Mircrosoft uses a tic-toc style development cycle for Windows going back to 3.1. 3.1 was awesome, 95 was a big upgrade but sucked, 98 was awesome, Me was a big upgrade but sucked, XP was awesome, Vista was a big upgrade but sucked, 7 was awesome, and 8 is a big upgrade but sucks. Just wait for 9.
As for 3DsMax, Autodesk isn't being stupid they are just a massive monopoly that doesn't give a shit about their products and prefers to be lazy and not try while eating up the competition so they don't have to put effort in.
-You've just been happified!?