Four operations are available on application USB Controller: 1 - write lock - this option, the USB devices are recognized, but can not copy files from your computer and be written in it; 2 - unlocking the write - write again releases dispositovos USB; 3 - total blockade - totally blocks the USB ports for any USB device. Note: This option locks all: pendrive, mp3, mp4, printers, etc..; 4 - Unlock the total - about the functioning of the USB ports to the original windows.