Changing letter drives, can't change back to D:\


  1. Posts : 3
    Windows 7 Proffesional 64bit
       #1

    Changing letter drives, can't change back to D:\


    I was messing around with my HDD partition and decided to rename my D:\ drive to X:\. Well everything went smoothly but then problems emerged.

    When I turn on my laptop a bunch of applications send the error message "No Disk". It says: "There is no disk in the drive. Please insert a disk into drive \Device\Harddisk2\DR3."

    I usually have to click a bunch of times before the error window stops popping up. This is also happening with various applications.

    I tried changing the disk letter back to D, except I can't do that since the letter D is not given as an option for the new drive letter.

    When I open up regedit and go to HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices both \DosDevices\D: and \DosDevices\X: exist, even though there is no partition named D:\ on my laptop.

    Is there a way to force change the drive letter back to D:\, or perhaps another solution?
      My Computer


  2. Posts : 72,012
    64-bit Windows 11 Pro for Workstations
       #2

    Hello Veliki, and welcome to Seven Forums.

    You might see if OPTION TWO in the tutorial below may be able to help.

    https://www.sevenforums.com/tutorials...ndows-7-a.html

    Hope this helps, :)
    Shawn
      My Computer


  3. Posts : 3
    Windows 7 Proffesional 64bit
    Thread Starter
       #3

    The problem is the letter D is not an option to select when I try to change the disk letter back to it. I'm guessing it's because the registry still has D:\ listed as in use. I don't want to delete this registry entry out of fear of damaging the OS.
      My Computer


  4. Posts : 13,576
    Windows 10 Pro x64
       #4

    Never change a drive letter once it has data on it.

    Can you post a shot of disk management ?

    You would most likely have to delete the partition.
      My Computer


  5. Posts : 983
    7 x64
       #5

    VelikiDrMr said:
    The problem is the letter D is not an option to select when I try to change the disk letter back to it. I'm guessing it's because the registry still has D:\ listed as in use. I don't want to delete this registry entry out of fear of damaging the OS.
    The reason D isn't available is because the CD/DVD drive has now been assigned that letter. Change that first to some other letter and you will be able to use D again.
      My Computer


  6. Posts : 3
    Windows 7 Proffesional 64bit
    Thread Starter
       #6

    edwar said:
    The reason D isn't available is because the CD/DVD drive has now been assigned that letter. Change that first to some other letter and you will be able to use D again.
    This solved it. It wasn't the CD/DVD drive, but a USB modem that I pretty much keep constantly plugged it. I feel stupid for not noticing it had the letter D assigned.
    I just unplugged it and changed the disk letter back to D. Thanks!
      My Computer


 

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