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HELP! windows not upgrading from home premium x32 to professional x64!
Right now I'm trying to upgrade my computer to make full use of all 32 GB of ram I have. I am running windows 7 home premium 32 bit, and I'm trying to upgrade to professional 64 bit. I burned the .iso file onto a DVD-R disk(I don't think this is the problem), but when I boot from it it says device drivers are missing and I should install the drivers. It always comes to the same screen, and I can't get past it. I've tried putting all the driver disks I know of in it, but it doesn't find any. I have tried everything from messing with the SATA bios settings to updating the bios to re-burning the iso file, but nothing works. Is this because I'm trying to install professional after having home premium? Is there some way I can avoid this problem without buying anything? Do I have to do a windows anytime upgrade to professional and then do it? I am really confused right now and I don't know what to do. I've been trying this for two weeks and it still doesn't work.
Thanks in advance