: From my personal view, used all, on 32bit x86
they all allow only a max of 4gb
, but with the x64
it is double then triple, check this out:
Check out the main editions section and the comparison chart sections on this page:
Windows 7 editions - Wikipedia, the free encyclopedia
A good place to download drivers would be from the manufacture of the product you added to the computer, if I add a ATI graphics card, I'd goto ATI website and find the latest from their.
Big subject, easy answer, it's totally upto you and what you prefer, windows 7 has less bugs then windows 8, yet windows 8 doesn't use as many resources to hog cpu performance, but their are rumors some older games are slow on windows 8 and some won't play.
If you want my personal advice, I'd stick with 7 Premium or Professional with a x64 CPU until you may want a change.