No problem for me
I don't even knew about the micro$oft apps store.. only torrentz get apps xD
Seriously.. I use linux and sometimes windows XP for some gaming.. i can't make use nor even play in DX11 with a geforce 8600... in the future, maybe i consider to move toward windows 7 (purportedly stable), when I plug something and it doesn't work (i.e. new hardware)
I tried win XP and XP 64, seven 32 and 64 and I found (beside the fact more than 3 GB of RAM with 64 bit) a minor improvement between windows version. It wasn't the case for Linux, it really makes the difference..
windows 8 is a waste of money (for those who really pay for software), it was designed for tablets and not for PC, and from my point of view, a waste of HDD space.. I encourage all of you to perform some benchmarks on your own computers with various windows and then came up with some conclusions. leaving aside the esthetic of windows.. who knows.. maybe win 8 really performs better than the former and so on..
so, my conclusion is: windows xp and seven perform the same in my quad core @ 2.4Ghz , 4gb RAM and an old geforce 8600 GT, then using XP i'm saving HDD for porn or whatever..