Write protection of flashdrive

SOURCE: how to delete files on write protected flashdrive without switch

First try to unprotect it by following way given below
First try to see is there is any lock in your media device or adapter and see if its not locking that media..it looks like slide switch .for one end it will lock the media and when you switch to other side you have the full access
but if that's not the reason it might be the problem with registry
Use the Registry Hack to Disable Writing to USB Drives
Here is the link .just download the zip folder and after opening the folder you will find a file just double click on it..

http://www.howtogeek.com/wp-content/uploads/DisableUSBWrite.zip
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SOURCE: i want to password protect

Download the software from here
Refrence for the same you can get it from here

First of all Read the refrence and then download the software. Try this thing out it works.

SOURCE: How to Unprotect a Write Protect Flash Drive

how to unprotect a write protect my flash drive & i cant copy paste any of my files to my flash drive it gives an error

error drive not found