Hello. So I bought a new Hard Drive yesterday when my old 1TB one had a bluescreen of death and it died. I bought a 250gb since I don't need anything larger for the time being as I am planning to replace my PC, I fitted the hard drive and installed windows 7 on it, after starting it up for the first time, I've noticed that my memory was very very small, it was only 78GB from a 250GB hard drive, i know you're supposed to lose ~5% of disk space due to the way windows calculates space and the way manufacturers make the disks, but this is 70%, it's way too much lost space. What is up with this?