Disable USB mass storage devices in SP2

[baza23]

I read the other day that there is a registry key in SP2 that can disable USB mass storage devices, problem is I can't remember where I saw it, does anyone know?

[baza23]

I found where I read it

http://www.microsoft.com/technet/prodtechn...n/sp2otech.mspx

Controlling block storage devices on USB buses

What does controlling block storage devices on USB buses do?

This feature provides the ability to set a registry key that will prevent write operations to USB block storage devices, such as memory sticks. When this registry key is enabled, the devices function only as read-only devices. You can implement this setting as part of a security strategy to prevent users from transporting data using these devices.

Who does this feature apply to?

• Users who do not want data to be written from their computer to a USB storage device.

• IT professionals who want to implement organization controls over the use of USB block storage devices

Only problem is I don't have this key in my registry, how do I add it?

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\StorageDevicePolicies\WriteProtect