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32-bit->64-bit with Student/faculty 32-bit upgrade disc..
My native language is not English so I'll just try to put this in a way people understand.
I have a W7 upgrade disc for students and faculty which says: "Windows 7 Ultimate 32-bit x86 Upgrade: Pre-existing OS license required (Product key required) ". It looks like this (except different version)
I have used the product key twice, first for upgrading XP>W7 on my old PC and then for installing&activating W7 on my new homebuilt PC with the help of this tutorial Clean Install with a Upgrade Windows 7 Version
Now to my current issue. I'm trying to make my W7 64-bit so that I'll be able to use all of my RAM. Will I be able to use the product key in my "Windows 7 Ultimate 32-bit x86 Upgrade: Pre-existing OS license required" disc to get 64-bit? In short, will the product key from that 32-bit upgrade disc work on an ISO 64-bit install which I have downloaded from the web (of course I will use the "how to clean install with upgrade disc" tutorial)
If possible can someone provide a step by step tutorial?