There is no point running x86 unless you have 3 gig of ram or less, You have 4 gig of ram so install x64,All x86 programs are installed to a 32 bit folder-Program Files(x86) so there are no problems.
I'm not sure about the key though as i got my windows 7 free from my office kms server and don't have to worry about keys
__________________
Kill ur idols....  |