XP64 -> XP -> Vista Ultimate

[JagrPuck]

Since Vista is unable to upgrade from XP64 to Vista, I'm wondering if it is possible for me to "downgrade" from XP64 back to XP Pro and then upgrade to Vista Ultimate? Such as me putting the XP Pro CD in and "installing" to XP Pro, etc? Or am I just completely screwed and having to format and then reinstall everything?

 

[tw1164]

I think you'll have to do a clean install if you want vista 32

 

[JagrPuck]

I have Vista 64 and 32.

 

[bsobel]

Originally posted by: JagrPuck
Since Vista is unable to upgrade from XP64 to Vista, I'm wondering if it is possible for me to "downgrade" from XP64 back to XP Pro and then upgrade to Vista Ultimate? Such as me putting the XP Pro CD in and "installing" to XP Pro, etc? Or am I just completely screwed and having to format and then reinstall everything?

Clean install only, sorry.