Right now I have 250GB HDD. I want to buy a 1TB HDD. But I dont want to reinstall everything. I want to move whole OS from old hard drive to new hard drive. Is it possible? if possible, can you plz explain me how? Right now, my 250GB HDD has 6 partitions. I only want to move OS ( drive C) to new Hard Drive. I dont want to take backup of entire 250GB HDD !!