From: John John - MVP on
You're welcome.

John

JonK wrote:
> Thanks John for the advice.
>
> "John John - MVP" wrote:
>
>> Install Windows XP x64 and then after you are done repair the Windows 7
>> boot environment: x:\boot\Bootsect.exe /NT60 All
>>
>> http://support.microsoft.com/kb/919529
>> Windows no longer starts after you install an earlier version of the
>> Windows operating system in a dual-boot configuration
>>
>> After you repair the Windows 7 boot environment you just need to add the
>> Windows XP x64 installation to the BCD store, you can use the Windows 7
>> bcdedit.exe tool for this or you can use an more user friendly third
>> party tool like EasyBCD: http://neosmart.net/dl.php?id=1
>>
>> John
>>
>> JonK wrote:
>>> Hi Shenan,
>>>
>>> Yes I realize it will be a clean installation and not the upgrade in place.
>>> What I am concerned about is the effect it may have on the dual or multi-boot
>>> process. When Vista came out and you wanted a dual boot with XP you needed to
>>> have XP installed before Vista. Well now I have this machine with XP, Vista
>>> and 7 on it. I want to replace the XP with 64 bit and I want to know if this
>>> will cause any problems with the multi boot process when I am done.
>>>
>>> Thanks,
>>> Jon
>>>
>>> "Shenan Stanley" wrote:
>>>
>>>> JonK wrote:
>>>>> I have a system that currently is hosting Win XP 32 Prof, Vista 64
>>>>> Ultimate, and a RC of Win 7 64 Ultimate. I want to upgrade the Win
>>>>> XP partition to Win XP 64 Prof. now. I remember when I first set up
>>>>> this multibooting PC that it was important to install the XP
>>>>> partition first before the Vista partition. Do I have a problem now
>>>>> that I want to upgrade the XP to 64 bit and already have a working
>>>>> Vista partition? The Vista partition is my working partition, has
>>>>> my day to day working programs and data.
>>>> You are calling it an 'upgrade' - so I just wanted to chime in and make sure
>>>> you understand that it isn't really an upgrade (a change in architecture,
>>>> really - and one that actually will likely put more limites on it than
>>>> anything else being the 64-bit of Windows XP and not a newer OS) nor will it
>>>> remotely act like an in-place upgrade - it will be a clean installation of
>>>> Windows XP x64.
>>>>
>>>> --
>>>> Shenan Stanley
>>>> MS-MVP
>>>> --
>>>> How To Ask Questions The Smart Way
>>>> http://www.catb.org/~esr/faqs/smart-questions.html
>>>>
>>>>
>>>> .
>>>>
>> .
>>