I have installed HDM 15 and created multiple backups without any problems. Recently, I tried to restore an older backup after launching HDM. Unfortunately the backup is installed on a USB drive which was originally a "D" drive but is remapped as an "H" drive upon reboot. I then booted up my system with an iso created from HDM 14. When I attempt to restore from the USB drive, I get to the part where I identify the backup and click "Next". At that point, there is no response, i.e. the system hangs. After about 30 minutes, I tried clicking "Next" again and nothing happened. I do not receive any error messages or other indications of any errors. I am running Windows 7, 64 bit. This is the first time I have tried to restore using HDM 15. Under HDM 14, I never had any problems and have used it to restore on multiple occasions. Would appreciate any and all help on this ... Thanks in advance ...