Windows 7 system permissions control the automatic operation of USB devices

        Under Windows XP, the first thing users consider to limit the use of USB devices is to prohibit them from playing automatically to avoid Trojan virus intrusion. But many times, this method is not very effective. If you are a Windows 7 user, you can control the automatic operation of the USB device from the source through its unique "privilege control" technology.

So, how to control it from the source?

we should all know, when the USB device is plugged into the host computer, for a while, the system will prompt XX device is ready for use later, this process is actually recognized by the system, and install the driver for the USB device process. We can use Windows 7's unique permission control function to prevent it from automatically recognizing and installing the driver, so that the purpose of controlling the source can be achieved.

enter "X: Windowsinf" directory (X: is the letter of the partition where Windows7), were found "usbport.PNF" and "usbstor.inf" file, and then respectively the corresponding "group or User "Property Security Permissions is set to "Reject". To set the "usbstor.inf" for example:

Right-click the "usbstor.inf" file in the dialog box to switch the Austrian "Security" tab, the default group or user "SYSTEM" The "Full Control" permission is set to "Reject". Group or user full control

corresponding to "reject" default

In the figure above, SYSTEM full control, the user can use the "Advanced" button below, into the Set the boot window. I will not go into details here.

Edit Comment: Although this method can control

USB device from the source from the installation, but the corresponding, when you plug the device into the host computer, the system will "dumb ", do not respond to your insertion behavior. Correspondingly, the author suggests that users should upgrade their permissions for their favorite users to get the "Full Control" permission to achieve a flexible effect.