write protected problems on cruzer edge flash drive

I  have write protected  error coming wen i copy or paste or wen i send data in my cruxer edge flash drive please help me to solve this problem.

I have the same problem

This thread should assist you:

http://forums.sandisk.com/t5/All-SanDisk-USB-Flash-Drives/HELP-how-do-i-reomove-write-protected-message-from-my-16gb-flash/td-p/279256

In a nutshell though, there is no magic bullet or secret hand-shake to solve the issue. The drive is defective. Return it.