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Write-protected SD card? Tried everything...

====== What Happened ==========

One day when I loaded my 16 Gigabyte microSDHC card, I attempted to format it. There are 5 gigabytes left.

It returned a "Disk is write-protected" error:

Image

====== What I have Tried =========

I have tried Disk Partitioning (failed, even though it says it was successful. ?!), CHKDSK (failed), and Disk Mangement (failed). Something interesting happened though... I got an "I/O device error" when deleting the disk partition:

Image

======== What I Suspect May Have But Might Have Not Caused This Issue =======

I previously used this microSD card with a Nintendo Switch until when I attempted to load a game it reported that the files were corrupted. I assume that the disk being write-protected was what had happened- nothing could be written to or removed from the drive.

====== Information About This Mysterious Disk ======

File System: FAT32

Total Space: 14.88 GB

Space Remaining: approx. 5 GB

===== Information About My Computer =====

OS: Windows 10 Home

OS Build: 19043.2130

Version: 21H1 (?!)

64 bit operating system, x64-based processor

Answer
Answer
Hi beackers,

I am Dave, I will help you with this.

1
Is there a tiny lock switch on the side of that SD card?

2
Try plugging that SD card into another PC and check to see if it works.

3
If not, there are 3 unrecoverable errors we get on SD Cards 'Write Protected', 'Insert Disk' and 'You need to format the disk'.

You will find 'fixes' all over the Internet, sadly none of them work, the SD Card cannot be repaired
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MSI GV72 - 17.3", i7-8750H (Hex Core), 32GB DDR4, 4GB GeForce GTX 1050 Ti, 256GB NVMe M2, 2TB HDD

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Question Info

Last updated April 18, 2025 Views 1,915 Applies to: