SD card write protection is one of the biggest headaches, in which case 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.
- Method 1. Check the Physical Lock Switch
- Method 2. Modify Registry Table
- Method 3. Use Disk-part Utility
- Method 4. Format Write-protected SD Card
Method 1. Check the Physical Lock to Disable SD Card Write Protection
Some SD cards and USB flash disks are designed with a physical lock switch on either side of the device body. 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.
This small trick won’t cost you anything but a few seconds. However, 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.
Method 2. Modify Registry to Remove Write Protection from SD Card
Make sure your write-protected SD card is connected to your PC, and then follow the steps below:
- Click Start and type “regedit” to enter Regedit Editor.
- Click the following options in turn:
HKEY_LOCAL_MACHINE->SYSTEM->CurrentControlSet->Control->StorageDevicePolicies. - Click “Write Protect” and set the value to 0.
After the above steps you should be able to use your memory card normally.
Method 3. Remove Write Protection on SD Card with Disk-part Utility
If none of the above methods helps you solve the problem, you may use Windows command prompt to disable write protection from SD card.
- Click Start and enter cmd, then open Command Prompt as administrator.
- In Command Prompt window, type “diskpart” and hit Enter.
- Type “list disk” and press Enter.
- Type “select disk E” and press Enter. (replace E with the drive letter of SD card)
- Type “attributes disk clear readonly” and press Enter.
- Type “exit” and press Enter to end the process.
Now you have removed the write protection from SD card and are able to transfer the files or format the card.
Method 4. Format Write-protected SD Card
Usually, the solutions above should work in most occasions. In case of accidents, you can also choose to format your SD card, which will restore SD card to the factory state. However, after applying the last resort, you will lose all the data stored in the disk. Luckily, you can use RePicvid Data Recovery to get some of the files back if not all.
There are several ways to format an SD card:
- 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.
Since the SD card is write-protected, it may refuse to be formatted, and you need further solutions to fix Windows unable to complete the format issue.
Problem still not solved? Here are some other basic solutions you can try:
- Scan SD Card with Antivirus
Run antivirus to scan the write protected SD card. This method could also disable the SD card write protection. - 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”. - 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.
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