I have both program files and program files x86. I use 64 bit windows 7 but teansferred data from old pc to new. Should i delete program files?
Leave them, though you will use Program Files(x86) more often, and thats where 99% of the programs are installed.
64-bit kinda sucks also because there are very few programs written for it. Ones I can think of off the top of my head: Tortoise SVN, iTunes, and WinRAR.