> My XP pro is OEM. If I find that I don't like Vista, am I able to
> reinstall my XP Pro - i.e will it still be activated (or will I be able to
> activate it if necessary), or does the upgrade path render my XP Pro
> permanently useless?
>
> Thanks,
> JJ
>
>
>
>
> "Rick Rogers" <rick[ at ]mvps.org> wrote in message
> news:%23fNIIpLtHHA.4888[ at ]TK2MSFTNGP02.phx.gbl...
>> Hi JJ,
>>
>> You should purchase a full version to create a dual boot to keep in
>> accordance with the license agreement. An upgrade license subsumes the
>> existing one for XP to create the Vista license, meaning you can use only
>> Vista once the upgrade is complete. The upgrade is cheaper because its
>> use is validated by the inclusion of your existing XP license. To use
>> both in a dual boot would require a full license for each, though in a
>> technical sense there are workarounds.
>>
>> The upgrade disk differs from previous Windows upgrades in that it must
>> be started within the existing, running XP or 2000 install in order to
>> enter the Product Key and proceed. You cannot simply boot from it and
>> "show" it an XP disk as a qualifier for upgrade.
>>
>> --
>> 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>>
>> "JJ" <abc[ at ]xyz.com> wrote in message
>> news:uU6toGLtHHA.3364[ at ]TK2MSFTNGP02.phx.gbl...
>>> If I buy Vista (Business) 'updgrade' (I have XP Pro) am I able to keep
>>> my XP Pro on my pc and install the upgrade on another hard disk on the
>>> same PC?
>>>
>>> i.e. I don't wish to run the XP and Vista at the same time, but I do
>>> wish to keep my XP on the machine in case of compatibility problems with
>>> Vista, and switch between the two when I need to (dual boot) .
>>>
>>> I wasn't sure if the 'upgrade' software is required to detect and
>>> overwrite the XP install, or if it just requires that you supply an XP
>>> install disk during install?
>>>
>>> If the former (or if installing the upgrade somehow 'deactivates' the XP
>>> Pro) then I'll have to pay more for the 'full' version.
>>>
>>>
>>> Thanks in advance,
>>>
>>> JJ
>>>
>>
>
>