I bought a Seagate portable HB. I tried to backup my C drive to the Seagate (F drive). I attempted to back it up by using "backup your computer" mode in my control panel. I designated F drive as my backup target. After completion of the backup process, I discovered that my C drive was backed up to my D drive and not F drive. How do I backup my C drive to my Seagate (F drive)? Also, how can I undo the backup to my D drive?