creating a new simple volume

My laptop had an 80 gig hard drive. I imaged my drive and replaced the hard
drive in my laptop with a 250 drive.
After reimaging my drive i find that I have 160 gigs that have left
unallocated. The only option I have is to create a simple volume. Everytime I
try to create the volume I gett this error " there is not enough space
avvailable on the disk to complet this action".

Thanks,