I've got a 500 mb hd, but it's split into at least 2, maybe 3 partitions.  C-drive is Vista, D-drive is system resore, and I think there is one other invisible partition.

 

I've tried booting to a killdisk, so that I can wipe and overwrite the entire drive and just install Vista Ultimate from the setup disk.

 

Currently, I removed all of the bloatware, but I'd rather just install Vista on a clean drive and then install the programs I want.

 

My problem is the killdisk boots up to a point and then gives an error message.  It's almost as if there is an invisible partition that is protecting the drive (keeping me from wiping the whole thing).

 

thanks