Of course you can do a fresh install with Windows 7 64 OEM. There is no other upgrade path possible going form a 32 bit system to a 64 bit system. You can not upgrade you're windows XP to Windows 7 64 without a fresh installation of Windows 7 64.
Thanks for the Reply Sir.
But this is a System builder one, don't they see you have XP Installed a registered?
I thought you would need the Upgrade?