1
What backup process were you previously using, is that File History to keep previous versions of your files, or did you use the old Windows Backup and Restore (Windows 7) function in the old Control Panel to create a full system backup image, or did you use the Western Digital utility on the drive to perform the backups?
2
When you indicate you want to reset the backup process do you want to start a new set of backups on your PC using that drive.