Hi all,

Is there anyway that we can disable user to use USB thumb drive on our Mac? But, I still want them to be able use their External USB drive though. The different between these two are thumb drive much smaller and has little GB compare to external hard disk. Is it possible?

I know by removing IOUSBMassStorageClass.kext will disable the USB port for the mass-storage. But that will include the external hard disk as well.