My computer cam with windows vista SP1. I installed windows 7 but did not partition the hardrive. ? -

Is is too late to partitioon the hardrive.. will i have to install windows 7 again.

I made 2 partitions when I installed XP.Then I split the extra partition from Disk Management and installed Windows 7 on one of them. Windows 7 has a bootloader and I choose either Windows 7 or XP at boot. You may be able to go to Disk Management and Shrink Volume and create a partition to load Vista on.