Question write protected

[qubusqubus]

I have purchased a bundle of Cruzer Edge 16G usb sticks, but I cannot remove the write protection from any of them. I can read everything that I stored on first use, but since then no success. Looking on the web it seems to be a frequent problem, but with no satisfactory solutions posted.
I have tried: CMD>diskpart>list disk> select disk # (using correct number) and then tried a number of commands including clean, but I get the reply that the disk is write protected.
In desparation, I have finally run the initial software stored on the stick and set a password, but stiil no joy. Can anyone help please? Most frustrating !

 

[USAFRet]

The 'satisfactory solution' may be to return them for a refund.

If this problem is seen by other people, those particular ones may just be defective.

 

[Pimpom]

Becoming write protected is probably the most common (not necessarily frequent) sign that a USB stick has gone bad. It goes into write protect mode to prevent loss of existing data. It's usually irreversible.