upgrade from vista home basic to ultimate!

[aDeeB!]

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Hi,

I have a desktop running with Vista Home Basic OS. Now I decided to upgrade the same to Ultimate version hence I bought a Ultimate OEM CD but it is not allowing me to upgrade the OS. Setup fails every time.

Somebody please help and tell me what the problem is?

[Kristaps]

As the Ultimate CD is OEM products, you wont be able to upgrade it because OEM versions can't be used for upgrades. So, you will need to do a Clean install by formatting the C Drive.

For more help ion the same, you can also see this Upgrading from Windows Vista Home Basic to Windows Vista Ultimate

[Lyalisai]

Is there any specific reason you want you to upgrade from Basic to Ultimate? You can do it but am just asking because most of the people I have seen ask for downgrading from Vista to XP.