I would try a backup software other than Seagate's. Unfortunately, Windows Backup and Restore is only available in Windows 7 Pro and above. There are free versions of most backup/imaging software, but I don't know of any that will back up files (they will back up entire partitions). Their paid versions, however, do.
Backing up the entire partition is a great way to backup, IMO if you have the disk space (an external drive is perfect). Here is a free version of an oft recommended imaging program: Macrium Reflect FREE Edition - Information and download
If you wish to back up at the file level, you will need to pay for a full version of Macrium or another software. I use and am happy with Acronis True Image 2011