Disable USB Storage Devices

Hi...
This is a great tip to disable usb storage drivers while allowing your keyboards, mouse and scanner to keep working. Very useful for public computers where you need to keep people away from copying its content. This only works on windows machine
1. Always backup your registry in case you mess up something
2. Open regedit and change the key value 'Start' of 'HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesUSbStor' to 4.

Value 4 - Storage USB devices are disabled.
Value 3 - Storage USB devices are enabled.