Disappearing USB HDD Volume and Letter

By fosbergroad
Dec 3, 2009
  1. Hello World:

    Last week life was fine. My eight year old Windows XP PC was limping alone OK with the C: Drive (32 GB HDD FAT32) and my G: Drive (IOMEGA 149GB USB). I say limping alone as a year or so back my CD-ROM Drives (D: & E:) had died for reasons I can't remember. So, missing my CD-ROM drives I started working on the issue. Nothing simple such as a driver re-install, BIOS reset, or system recovery solved the problem and after much searching I down loaded a registry script to reset my drives. After a reboot, the CD-ROM Drives resurfaced! Case Solved with one glich; my G: drive no longer was visible in My Computer. Must of been something I did to fix the other problem.

    So now the 'Disk 1/ FAT32 Partition' DOES show in Disk Management just below my C: HDD. Yet, I am unable assign a letter to the drive (option not available). The drive is listed as 'DISK 1' yet it does not have a VOLUME number.

    I am assuming that I have some contention happening between my CD-ROM drives and my IOMEGA drive previously know as G: drive.

    My wife has about 50 GB of family photo's on this drive so I am praying that I will not need to reformat.

    Any suggest here would be greatly appreciated.

  2. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Guide: Troubleshoot: Windows Won't Recognize USB Hard Drive / Fix Unassigned Drive Letter

    Also if you have Norton GoBack installed > uninstall it
    And if you manually mapped any drives, disconnect them
    • To disconnect a mapped drive:
      1. Click Start, and then click Run.
      2. In the Open box, type cmd.
      3. Type net use x: /delete, where x: is the drive letter of the shared resource.

    • Disconnect from a mapped network drive
      1. Click Start, and then click My Computer.
      2. Right-click the icon for the mapped drive.
      3. Click Disconnect.
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