Whilst not exactly a Windows problem, I'm trying to set up bootcamp, I've partitioned the HDD within the Bootcamp setup program. I restart my machine and the newly partitioned drive isn't showing up. Disk Utility can see it but cannot do anything with it. Not a format, an erase, anything. It can erase free space. So I click that for no real reason at all and I get the error message- "A disk with a mount point is required" Under partition type it says "Microsoft Basic Data". Something isn't right here. I never had this problem with my other iMac (same spec, 17" C2D...).