Hi Wicked . . . The yellow question mark is for my Maxtor One Touch II ext hdds. I installed the software, which is basically only Retrospect, but there are no drivers on the disk. I checked for drivers on the net and couldn't find any. The reason might be because Maxtor was bought out by Seagate and Seagate dropped support for these oldies, but it could also be because Retrospect is the driver as well as a Restore program, or maybe no x64 drivers are available for them. The software worked on my old 32-bit pc.