I replaced my 40GB Dell Latitude D600 laptop internal hard drive with the 80GB upgrade. I first made an image backup of the 40GB drive to an external Iomega USB hard drive. Then I removed the 40GB drive, installed the 80GB drive, booted with Iomega boot disk, and restored the image backup to the new 80GB drive. Generally everything seems to be working fine except when I try to defrag the 80GB hard drive, Windows professional XP defrag utility still thinks it is a 40GB dirve and complains that it can't do the defrag because the drive is too close to full. What do I have to do to get windows to realize this is actually an 80GB drive?