Using Paragon Backup and Recovery 2013 Free, I successfully completed a backup to a 2TB external USB hard disk drive. However, when attempting to mount the image, I receive this error message: Operation failed Can't open/create file Error source: Hard Disk Manager Error code: 0x10023 A search of the Internet reveals that other people are experiencing the identical problem with Paragon Backup & Recovery (but the same people are not experiencing the problem with other backup and recovery software). What can cause the problem? Is there a solution or solutions? My operating system is Windows 7 Home Premium 64-bit. UAC is off. I run as Administrator.