Hi! I recently bought Win 7 64-bit OEM for a clean install on some older hardware. I have not opened the package, but see now that my hardware will support only 32-bit. I have a 32-bit Win 7 disc here. Can I install from that and use my new 64-bit license key? Thanks!
If you havn't opened the package you should be able to return it and exchange for a 32 bit version.
Otherwise if you can borrow one that's the same, only 32 bit it should work, unless they have a different set of keys for oem 32 vs 64 bit.