From what I can understand, when you get to the option where it has x86 or x64, go with the x64 option instead of the x86 one on top. You might of accidentally did a next button spam and didn't check or something, we're all guilty of it .
Hope it helps
Dan
Who is this shopkeeper? when you buy windows 7 the key is good for both 32 and 64 bit. Did you get the DVD/DVD's in a box that makes it look like it came from Microsoft... you may have a pirate copy and the shopkeeper is doing something illegal.
it is a pirate window dvd but i have original key with me
this dvd installs 32 bit rather than 64 bit and i think there should be 2 dvds 1 of 32 bit and 1 of 64 bit
am i right