neon neophyte :
holy hell matilda...
your 32 bit key is usable for the 64 bit operating system. microsoft released all versions of windows 7 for free download. all you have to do is put your 32 bit windows 7 key into your newly downloaded 64 bit windows.
how do you have so much trouble following along
You need to consider all the options and read up on your information. Microsoft only releases a "free" OS in one of two ways, nothing more.
The first way is via beta testing or R# options. This is a very basic installation of the next big OS or program they are working with and is usually EXTREMELY buggy whereas M$ does release a key with it but it usually is limited.
The second method is by trial usage. When you download a trial program, whether it be OS or software bundle, from M$ it will always have a date line attached to it, it could be anywhere from 30 days (OSs) to 120 days (Office).
MatildaPersson :
Mmm, but, like the OP, how many people know that? Microsoft can't get away with not allowing the keys to work for both versions, but this ignorance of compatibility does the same job; people want 64x? "Guess I'll buy the new OS."
MS gets to have it both ways.
Do we need to schedule a room for you two?
@OP:
Plain and simple, When Windows Vista, 7, and 8 all released they have been released with 2 DVDs, one that is 32-bit and one that is 64-bit, that both work with the product key that came with them in the package. There is no upgrade path from a 32-bit operating system to a 64-bit or vise versa. This is due to different items built into the kernel (the programming part) of the operating system itself. Microsoft's ISO vendor, Digital River, does indeed offer an online source for someone to download the ISO of which ever OS they are trying to use, but they
DO NOT provide product keys.
However you go about obtaining your product key, we at Tom's Hardware recommend and support buying the actual product whether it be retail or OEM. You can find more information in regards to the different versions of Windows 7
HERE.
It should be noted that we DO NOT support piracy in any form or fashion, there are methods but you will not receive help from someone here in regards to it.