Sandisk Ultra Missing Drive Letter Problem

@ed_p wrote:

Assigning different drive letters to each different drive, ie the 16GB ones different from the 32GB ones, should help. I have some of mine assigned  to S: and T: to keep them out of the way of  other random drives.

Thanks for the suggestion. Tried that on the Ultra drive’s (all five of them) and it didn’t work. Each one was assigned their own drive letter yet wouldn’t mount with a drive letter while other non Ultra drives would mount with drive letters.

What has seemed to have worked was to access the “diskpart” run command, then issue the following command: automount enable

From then on when the Ultra drives were inserted they mounted with a drive letter starting with the first unused drive letter on the system.

Explanation of the Automount command: https://technet.microsoft.com/en-us/library/cc753703(v=ws.11).aspx