I recently repalced a 360GB drive with a 500GB drive in my dell laptop running WIn7. After restoring froma system image, I have 167GB of unallocated space that I can't recalim. I've tried extending existing drives/partiitons but all are greyed out. I've tried to make a simple volume and get an error that I already have the max partitions allowed. What is on the drive now is 100 gb untitled, 9.77 gb Recovery, 58.59 GB OS (C, 220.63 GB D: and 167.67 GB unallocated