I cannot remove the write protect setting on usb removable disk

Remove write protection from Sandisk pen drive with write protection removal software. Double-click on the WriteProtect value in the right-hand pane of Regedit.exe. Change the Value data from 1 to 0 and click OK to save the change. Close Regedit and restart your computer.

Open up a command prompt as administrator
Type diskpart and press Enter
Type list disk, and you'll get a listing of all drives on your machine.
Type select disk # to select a disk. You can use the Size column to identify which one it is.
Type attributes disk clear readonly - change your USB's properties so that it is no longer read-only.

Some USB disks fail as read-only.

Write protection means you can view the information stored in it but you can't write and transfer the information to it.
For removing the write protection follow the below mentioned steps:
1. Right click on the USB stick
2. Go to properties and uncheck the read only or write only protection option.

To disable writing access to USB drives and make all USB drives has only read-only access, follow these steps:

1. Run Registry Editor (regedit).
2. Navigate to the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control
   
3. Create a New Key named as StorageDevicePolicies.
4. Highlight StorageDevicePolicies, and then create a New DWORD (32-bit) Value named as WriteProtect.
5. Double click on WriteProtect, and set its value data to 1.

Once set, all users on the computer is now blocked and prevented from copying, transferring or writing any files, documents and data to the USB disk drives, without the need to restart or reboot computer. Any attempt to download or copy files to USB drive will return the following error message:
The disk is write protected.
The media is write-protected.
Remove the write protection or use another disk.
To revert and remove the blocked write access to USB drivers, just delete the StorageDevicePolicies registry key, or delete the WriteProtect registry entry, or change the value data for WriteProtect to 0.
For user who doesn't want to manually editing the registry, simply download the following registry registration files to enable or disable the write protection (block writing attempt) to USB removable drive. Double click the .reg file unpacked from the .zip archive to merge the registry key entries.
Download DisableWriteToUSB.reg
Download EnableWriteToUSB.reg
The trick works in Windows XP SP2 and SP3, Windows Vista, Windows Server 2003 and 2008.

See the steps to remove write protection of your harddisk.. below

http://www.soluzia.net/How-to-disable-write-protection-of-USB-flash-drive.php

Found this on Kingston site, doesn't help much but may point you in the right direction.

Unfortunately this unit does not have any security or write protection feature. If you receive a write protection message with this drive, check for the following:

1. Verify that you are allowed to write to removable storage devices. There may be a security setting in the OS that disables write access to removable storage devices.
2. Make sure you have not enabled write protection on the drive by using a third party software.
3. If none of the above apply, the drive may be defective.

1. Download this tool:
http://dl.dropbox.com/u/4040651/HPUSBFW.EXE

2. Format

(Before removing USB flash drive click on the Safely Remove
Hardware icon and then click on USB flash drive you want to remove)

how do I remove write protection on my cruzer 2GB thumb drive