Micro SD Card drive letter changes on reboot


  1. Posts : 17
    Windows 10 Home
       #1

    Micro SD Card drive letter changes on reboot


    I have a number of LINX10103G tablets that have micro SD cards in and have been manually assigned to the drive S, although we have noticed that it conflicts with another folder we already have which is set to S. We decided to change the drive letter to Z and hope that resolves the issue. Now on some devices the drive letter changes to Z fine and after a reboot it remains at Z but on a number of devices even though we have assigned the drive the new letter of Z, after a reboot the drive letter reverts back to S.

    I have tried a number of ways to try and get the drive to stay at Z but after every reboot it reverts back to S.

    I contacted Microsoft who told me to go to this link: Change and Assign Drive Letter in Windows 10 Hardware Drivers Tutorials and try everything on there to see if that works - I have tried all of the methods on here and after each reboot the drive reverts back to S after a reboot.

    After trawling through numerous forums & websites I haven't found anything else that I can try. If anyone has any further suggestions it would be welcome!
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  2. FreeBooter's Avatar
    Posts : 3,968
    Windows 10 Pro 64-bit
       #2

    Open the Device Manager by typing Devmgmt.msc into Start Menu and uninstall micro SD card driver and reconnect micro SD card.
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  3. Posts : 17
    Windows 10 Home
    Thread Starter
       #3

    I have just tried that but after uninstalling the device, taking it out and then putting it back in again it still opens up as S drive.
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  4. FreeBooter's Avatar
    Posts : 3,968
    Windows 10 Pro 64-bit
       #4

    What happens if you assign a different drive letter that is not Z: drive letter?
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  5. jumanji's Avatar
    Posts : 5,560
    Windows 10 Home 64bit Version 20H2
       #5

    Hi Stokesyboy,

    Please try a drive letter cleanup on those tablets where it refuses to stick to Z , as per the following post

    https://www.eightforums.com/drivers-...tml#post540114

    After the drive cleanup, reboot and then plug in your SD Card. It will be reinstalled afresh with a drive letter. Change the drive letter to Z and then check whether it sticks on subsequent reboots..

    What you have done is to remove all drive letters associated with non-present devices which Windows stubbornly refuses to release otherwise.

    I will be surprised if it does not resolve your problem.

    Note: You may try the latest version of DriveCleanup - Download V1.5.0 (Registry cleanup under Mounteddevices2 works again) drivecleanup.zip instead of v 0.8.1 mentioned in the above post

    I do a periodic drivecleanup on my Windows 7 PC to remove the non-existent drives and registry entries and drive letters associated with those non-existent drives. ( Though I have a Windows 8.1 PC - me the non-user - and Windows 10 PC - my wife, the user and which I do not touch unless she reports something "serious" - mostly her ignorance :) - I hadn't used the drive cleanup on these machines since we very rarely plug-in and plug out external devices on them.)
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