How to remove an extra windows partion from parallels?

[draggo]

I just got a mac pro, and I tried to setup windows on a drive for bootcamp. the drive already had a windows partition on it, so i quick formatted it, and had windows installed in the drive. It finished and it was working fine, but when windows was restarted it gave me two different windows operating systems to choose from. I chose the first one and it still worked. I booted to OS X and ran parallels and it worked fine as well. But now when I try parallels It tells me this: "More than one Windows partitions are found. This is not a standard Boot Camp configuration." and i cant run windows through it. I tried looking through
the user guide but no luck so far. Is there any way I can remove one of the windows OS from the drive?