Flash drive displays the disk is write protected once it is plugged in

[batuli]

Hello,
I get the message to format my pendrive as soon as i plug it. It could not be formatted. What is happening with this. I tried many options like setting StorageDevicePolices, low level format but could not get out of this problem. can any one help me with this please?

 

[ktownmike]

many drives have a push switch on them to write protect.