Hello I have an Alienware M17XR3 laptop running Windows 7 64 bit. I tried to upgrade to Windows 10 but failed miserably , drivers, no boot , blue screen and black screen. I clean installed Windows 7 from Alien respawn discs I had created. I had previously used Ghost 15 for backups to an external hard drive. Ghost was gone from my clean install. I must have downloaded Ghost 15, i do not have an installation disk. When i tried to open the backup files from the external hard drive about 14gb, a message popped up windows unable to open this type of file. I tried to download a trial version of the new System Recovery edition but it required business details to proceed with the download. How can I open these backup files and then return them to my computer ?