Get the retail upgrade.
It's a "start fresh" regardless. While you don't have to reformat the harddrive (although you might want to - to get rid of all the vendor garbage) since NTFS is the same, it's a complete OS reinstall. There is no "upgrade" from 32-bit to 64-bit. Regards, Michael B. Smith MCITP:SA,EMA/MCSE/Exchange MVP http://TheEssentialExchange.com From: Joe Fox [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 15, 2008 1:53 PM To: NT System Admin Issues Subject: Vista 64 Upgrade I am trying to make my way through all the Microsoft Legal-speak (which I think should be offerred as a foreign language class!) and need to find out how one would go about upgrading Vista Home Premium (32 bit) that came on my new notebook to Vista Ultimate 64 bit. Is it just a matter of getting the retail upgrade and installing fresh? Or should I just buy a retail version of the 64 bit and start from scratch? Any guidance would be greatly appreciated. Thanks. -- Joe Fox Systems/Network Administrator Mobile# (716) 846-9308 http://www.linkedin.com/in/josephfoxjr ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~