I am using the free edition of Paragon Backup and Recovery 2013, version 10.1.19.16240 (22.11.12 ) Free I am using Windows 7, 64 bit I have had no issues with this software so far and have backed up two of my hard drives. I have tried to back up my third hard drive and get this error: Script error: VSS: Can't read volume data It is an external hard drive. It has been used to put backups ON but I cannot back this drive up. Does the free version not back up external hard drives? Any other suggestions? Thank you!!!!