Unless it is OEM, i.e. supplied with a new PC. OEM versions are either 32
bit or 64 bit. You would have to by a new copy of Vista 64 bit to replace an
OEM 32 bit version.

Mike Bernstein

"Rick Rogers" <rick@mvps.org> wrote in message
news:OhfYBuvbIHA.4172@TK2MSFTNGP02.phx.gbl...
> Correct. A Vista license allows for installing either the 32 or 64 bit
> version of the puchased product.
>
> --
> Best of Luck,
>
> Rick Rogers, aka "Nutcase" - Microsoft MVP
> http://mvp.support.microsoft.com/
> Windows help - www.rickrogers.org
> My thoughts http://rick-mvp.blogspot.com
>
> "dimaj" <dimaj@discussions.microsoft.com> wrote in message
> news:E1961524-E558-450F-9507-39398A3D98F1@microsoft.com...
>> Hello,
>>
>> So just to clarify...
>> There will be no additional license fees for upgrading Windows Vista Home
>> Premium 32 bit to 64 bit, right?
>>
>> Thanks in advance.
>>
>> dimaj
>>
>> "Robert Firth" wrote:
>>
>>> Yes, you will be able to reinstall with 64 bit. Just remember that you
>>> can'
>>> upgrade, it must be a clean install.
>>>
>>> --
>>> /* * * * * * * * * * * * * * * * * *
>>> * Robert Firth *
>>> * Windows Vista x86 RTM *
>>> * http://www.WinVistaInfo.org *
>>> * * * * * * * * * * * * * * * * * */
>>>
>>> "Mike" <Mike@discussions.microsoft.com> wrote in message
>>> news:934622C0-9444-4137-B0E3-9DBE7DDC3684@microsoft.com...
>>> >I currently have Windows Vista Home Premium 32-bit installed on my
>>> >computer.
>>> > However, I have a 64-bit processor and was thinking that it might
>>> > behoove
>>> > me
>>> > to make the switch to 64-bit for the increased performance. However,
>>> > since
>>> > I
>>> > have already activated my Product Key, will I be able to uninstall my
>>> > current
>>> > Vista installation to install the 64-bit?
>>>
>