How to disable Write Protection on Usb flash drive or Pen drive

1.
Run the Command Prompt as an Administrator.If your USB drive or SD card is stuck in Read Only mode, you may be able to fix its attributes using the Command Prompt.
*.PressStart.
*.Go to Accessories.
*.Right-click Command Prompt, then choose "Run as Administrator".
2.
Type DISKPART and press ↵ Enter.This will launch the DiskPart utility in a separate Command Prompt window. You will likely be prompted by Windows to start it.
3.
Type LISTDISK and press ↵ Enter.This will display a list of the drives connected to your computer.
4.
Find your USB drive or SD card in the list.
All of the partitions connected to your computer will be displayed, including your internal hard drives.
There are several columns of information you can use to identify the USB drive:
*.The Ltr column displays the associated drive letter for each partition. Not all partitions will have letters, such as recovery partitions.
*.If you've given the USB drive a name before, it will be listed in the Label column.
*.Look for Removable in the type column.
*.The Size column can help you differentiate between two similar USB drives.
5.
Type select diskX.ReplaceXwith the number from the first column in the list for the USB drive or SD card you want to perform commands for. For example, if the USB drive is Disk 5, you'd type select disk 5.
6.
Type attributes disk clear readonly and press ↵ Enter.This will change your USB's properties so that it is no longer read-only.
7.
Type EXIT and press ↵ Enter, then try your drive.DiskPart will close, and you can try manipulating files on your USB drive again. You may have to eject and then reinsert the drive to get it working.
The tricks was collections from WIKI HOW.