I have been slightly forsaken because I have not been able to back up my laptop (Windows 7 Pro) using Acronis 2017 from Windows 7, getting many disk errors. However I had the bright idea to try the backup using my bootable Rescue Media on a USB data disk. Lo and behold, the backup completed successfully. I also tried backing up a couple folders and that also worked. However trying the same thing using the Windows 7 Acronis program from within Windows 7, and it failed backing to on two separate external hard drives.