Please do not post your email publicly, you're exposing yourself to spammers. May I ask what flash drive you are using? Did it come with software? Maybe the software was used before to activate write protection.
Thanks for the advice for not posting EM ID. The Flash Drive did not come with any Software. It is Transcend 4 GB. Had used it many times before. But this problem came up first time.
Will be grateful, if U can suggest the recovery of Data.
Thanks & Best Regards