SD card write-protection unwanted

  1. Posts : 91
    W10 Pro, 64

    SD card write-protection unwanted

    I have a micro SD card which suddenly says it is write-protected. I made sure the small tab on the side was in the proper position. I also tried the disk part method but it had no effect on the read only status.
    I see there's another possible solution by editing the registry, but I'm worried that that would apply to all drives. Any suggestions? I don't want to erase all the files on the drive.
    And I tried 2 different adapters, which work on another SD card.
      My Computer

  2. Brink's Avatar
    Posts : 49,746
    64-bit Windows 10 Pro for Workstations build 20161

    Hello Jim,

    You could check the options in the tutorial below to see if one may apply.

    Enable or Disable Disk Write Protection in Windows
      My Computers

  3. Try3's Avatar
    Posts : 4,556
    Windows 10 Home x64 Version 1909 Build 18363.900

    It sounds to me that the card has become permanently defective [worn out]. Behaving as read-only is the most commonly-reported symptom of a defective SD/USB card and it can strike at any age.

      My Computer

  4. Bastet's Avatar
    Posts : 1,205
    Windows 10 Pro 64bit

    It’s most likely failed.
    You can try copying all the information off the drive & running diskpart to clean the card then formatting it to see if it’ll ‘fix’ the read only message, if not or at any point it fails then the drive is kaput.
    Start>Powershell with admin & enter:
    list disk
    select disc X (where X is the number of the SD card)

    Now go to drive management & it should ask you to initialise the drive, agree then you can format it.
      My Computer

  5. Damun's Avatar
    Posts : 87
    Windows 10 Home, 1909

    Just a suggestion to make sure before you write it off:
    I have a SD card where the write protection tab is "loose" so that every time i insert it into a reader it moves to the "protect" position and when i pull it out, the tab moves back to the "write" position.
    I ended up taping it in the write position with a small piece of tape.

    Nevermind. I just realized you're asking about a micro SD.... My bad.
      My Computer

  6. EdTittel's Avatar
    Posts : 3,808
    Windows 10

    The maker's site may have a low-level format utility. If that doesn't do the job, then the other posters who've suggested that the device is no longer working are probably correct. I've had this happen to me on USB flash drives, plus full-size and micro SD cards. Best of luck in resolving your situation. Look at the bright side: at least you can still copy the existing contents to other media, before you toss this microSD card out.
      My Computers

  7. Farvatten's Avatar
    Posts : 397
    Windows 10 Pro 64bit 2004 19041.329

    EdTittel said:
    The maker's site may have a low-level format utility.
    If you can't find one at the makers site there's also this one that the SD Association recommends and that @Bree mentioned here:

    Writing to SD Cards

    SD Memory Card Formatter - SD Association
      My Computers


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