How to Remove Write Protection from SD Card

SD card write protection is one of the biggest headache when in use. You are not allowed to modify or delete files on the card. On the one hand, it protects the original file and prevents maloperation. On the other hand, it avoids the virus attack on file. But it is troublesome when we need to release the SD card space. Here are some often used methods to help you remove write protection from Micro/SD card.

Normally there is a lock switch on the left side of the card. You can pull the switch to the other side to unlock it. If the lock switch looses or can be moved easily, then fasten it, or it’s time to replace the card.

Pull the switch to the other side to unlock it

You can also format the write protected SD card to fix it:

A. Right click your SD card and select format. Click “Restore device defaults” and start to format the card.
B. Format SD card using cmd. Click Start and enter “CMD, Format D:/”, then it will automatically complete the formatting process.
C. Try SD card format software to wipe the card.
D. If there are significant files on the card, try professional data recovery software like RePicvid Free Photo Recovery to get files back without formatting.

What if your SD card doesn’t have any switch and windows fails to format the card? Don’t worry, please continue to try the following methods.

Modify Registry Information to Remove Write Protection from SD Card

Follow the steps below:

  1. Click Start and type “regedit” to enter Regedit Editor.
  2. Click the following options in turn:
    HKEY_LOCAL_MACHINE->SYSTEM->CurrentControlSet->Control->StorageDevicePolicies.
  3. Click “Write Protect” and set the value to 0.

Modify Registry Information to Remove Write Protection from SD Card

After the above steps you should be able to use your memory card normally.

Remove Write Protection on SD Card with Disk-part Utility

If the above method does not help you to solve the problem, you may use Windows command prompt to disable write protection from SD card.

  1. Click Start and enter cmd. Then input “diskpart” to open the utility.
  2. Type “list disk” and press Enter.
  3. Type “select disk E” and press Enter. (E is the drive of SD card)
  4. Type “attributes disk clear readonly” and press Enter.
  5. Type “exit” and press Enter to end the process.

Remove Write Protection on SD Card with Disk-part Utility

Now you have removed the write protection from SD card and are able to transfer the files or format the card.

There are some other basic solutions you can try:

1. Scan SD Card with Antivirus

Run antivirus to scan the write protected SD card. This method could also disable the SD card write protection.

2. Check the Properties and Space of SD Card

Right click the SD card and select Properties > Security > Edit. Then change the permission of the SD card on “Full control” “Read & excute”, “Read” and “Write”.

3. Check the Mobile Devices Settings

If your SD card is inserted in mobile devices, don’t forget to check the device settings to unlock the card.