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Is the windows 8 upgrade 32 bit or 64bit

Currently I installed Windows 8 Pro 32-bit. Is it possible to upgrade Windows 8 32-bit to 64-bit one? During installation I don't see any option to choose between 32-bit and 64-bit.

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marked as duplicate by Hennes, BBlake, 8088, Indrek, Siim K Dec 13 '12 at 8:31

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You will need to reinstall –  Fergus Dec 12 '12 at 5:18
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I think you choose 32-bit or 64-bit through selecting which DVD you put in the caddy. –  Guy Thomas Dec 12 '12 at 21:15
    
@Hennes It is not asking the same question... I don't believe it's a VTC –  Canadian Luke Dec 13 '12 at 0:57

2 Answers 2

I don't think so, but I found on the web this link...

http://winsupersite.com/article/windows8/windows-8-upgrade-32bit-64bit-144649

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No, because of the computer architecture. Those two setups are set on installation (how the CPU will treat the data, will it use 32-bit buses or 64-bit buses, addresses, etc.) and cannot be simply 'upgraded'.

You would need to reinstall the OS, as said above. In average system usage, there isn't much difference though.

Wikipedia has a good article on pros and cons - 64-bit vs 32-bit and describes the differences.

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It depends on how you define the average system. These days a desktop tends to have more than 4GB of RAM, and then it does make a difference. –  Hennes Dec 12 '12 at 21:38
    
Indeed, that's completely true. Meant to say "for average user". –  sachiel6 Dec 15 '12 at 19:44

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