windows 7 USB HDD drive letter issues

January 11, 2011 at 05:36:33
Specs: Windows 7, Studio xps 8000/8 ram
I have two Iomega eGo 2TB external hard drives. When I plug them in seperately, they are correctly detected by Windows explorer.

When I plug them in at the same time into two different USB ports Windows Explorer only sees one, but when I go to safely remove hardware both are listed, but only one shows iomega below the eject symbol. I tried renaming one of the drives, then both, but nothing changed. They both come up as I: drives so I tried changing the Drive path to K on one but when I booted both drives, it changed the drive path to K on both.. Any ideas on how to get it to see both drives? Thanks. Frank


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#1
January 11, 2011 at 19:36:34
Have you tried Iomega support?
They were probably formatted on the same machine and leave the same 'fingerprint', it may be that formatting one of them with windows will help, but I would recommend asking the manufacturer first, especially since you probably want to protect your warranty.
Another thought.... If you are using your front USB ports, they are BOTH connected to the motherboard through one internal USB expansion port and THAT may be what is confusing Windows. Test this out by using one attached to a rear USB port and see if this helps. If this is the case and you need independent access and the convenience of using front USB ports, you can probably add an additional front USB panel (if you have a free internal USB connector on your motherboard).

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#2
January 15, 2011 at 07:44:08
Hi! I had exactly the same problem and I just found the solution by opening the disk management application and performing the rescan disk action. The second disk now showed up with a message "The disk is offline because it has a signature collision with another disk that is online." and googling for "signature collision" led me to http://www.howtohaven.com/system/ch... which contains the steps to solve the problem.

TP


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#3
January 15, 2011 at 18:29:11
Apparently my instinct calling it the disk's 'fingerprint' was correct except that it is apparently the disk signature. Apparently saving the files somewhere else and formatting in windows should work, but this sounds like another good option for those willing to give it a try.
Thank you for posting this information, I know I learned something by reading it. I hope that one method or the other helps the original poster.

You have to be a little bit crazy to keep you from going insane.
This site is about helping people, lets keep it that way.


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