This is a known hardware error and can’t be fixed. Sandisk is aware of the issue, although there is no official recall for the product. This is an offical answer if you contact customer service:
"I understand that you are getting write protection error while accessing your Cruzer flash drive. The flash drive has detected a potential fault and has become write protected to prevent data loss. There is no method to fix this. You will need to backup your data and replace the flash drive.
Our team of developers is in combination with the OS developers looking into a solution to resolve this issue.
Please note that only a minor percentage of users are experiencing the write protection issue and these are the customers posting on the internet to find a solution."
SOLUTION 1: Return to where you bought and get a refund (as others usb drives might have the same issue)
SOLUTION 2: Contact Sandisk costumer service and get a refund, for the same reasons
I have the same problem. Yesterday while transferring files I got the read only message.
I have got the data transferred to another drive but my USB drive is now not operable and I can’t even delete fiels from it, so I will have to physically destroy it to safeguard my files.
I hve a 8GB cruzer edge drive, I am not able to use as it is blank and when I want to copy any file, it shows “Disk is write protected. Remove the write protection or use another disk.”. Please advise what to do?
i can’t format my pendrive. it’s saying that it’s write protected. at first when i brought that pendrive it was working well and good, But after some days it suddenly sarted saying it’s write protected it’s beacause of the viruse. But now i am un able to remove it. If i try to then it will say that it’s write protected. How to fix this?