Enable/Disable Writing to USB devices.

To enable writing to USB devices:

[HKEY_LOCAL_MACHINE\system\CurrentControlSet\Control\StorageDevicePolicies]

?WriteProtect? =dword:00000000

To disable writing to USB devices:

[HKEY_LOCAL_MACHINE\system\CurrentControlSet\Control\StorageDevicePolicies]

?WriteProtect? =dword:00000001