How to remove the "Write Protection" on a micro sd card? I've tried the RegEdit and the"unlock" switch on the adapter but it s

I had this ordinary micro sd card (which brand I still don't know) and I used an adapter everytime I connect it into a laptop. I "locked" the adapter and now I can't delete or add some files on my sd card. I've tried the RegEdit and the switching of the unlock button of the adapter but the sd card is still write protected. I'm considering of using the cmd.exe but I don't know how. Please help me.
Reply to Janine Calbit
2 answers Last reply
More about remove write protection micro card regedit unlock switch adapter
  1. Normal this mean's the SD card is faulty. Let hope you can read the files off it.
    Reply to davidgermain
  2. I went about this in a roundabout way so not sure what did it

    (The 1st part may not be necessary)

    but I was in same sich & fixed it

    (((((((1st part :
    I went to regedit
    Did the known modifications mentioned above, plus these:
    took a backup
    Erased all entries under
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\usbflags
    inserted my sd
    noticed the new entry
    Restored Registry
    went ahead and added a Dword value for WriteProtect to that entry (value=0)
    Then i went here
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\usbstor
    and checked out the values of Dwords within
    There were these values for the dwords of different entries, 1 per entry 16, 32, 32, 128, 256
    my sd was 64gb and was incorrectly identified as 32gb by windows.
    so I changed one of the 32s to 64
    And added a WriteProtect and a ReadOnly Dword value for good luck
    rebooted
    tried format.... it froze)))))))

    2nd part:

    tried Yumi
    it worked

    the answer may be as simple as using yumi program
    I am not sure

    I have come to this site for help before and it usually solves whatever sh#% I might find myself stuck in from poweruser level day to day MS and linux usage
    and I know you guys who are either regulars or are Mods here can solve it and edit this answer.
    I hope you get some of your SD cards back for doing it
    I know many people will certainly get theirs back if you follow this up.

    P.s. Another solution I read once was to insert it into a portable camera which uses micro SD cards and let it format it for you.

    I got so far as to find a rough description the protocols used (but they seemed proprietary)
    I could not find what voltages to apply to which pins to throw it back in its default state of all ones.
    But it looked as if there was a simple solution going down that route as well.

    could not find the voltage scheme for that

    Mine was 64gb.
    Not as cheap it was handy.

    Thanks, tomshardware, for your great solutions/hacks.

    Philip S. Bodenheimer
    Reply to phi1123
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