How to limit the use of USB flash drive

U disk has become very popular, and many mobile phone functions also have U disk function, so it is very simple to copy some files from other people's computers, which is a great threat to the data in the computer. Don't worry, let's teach you to use the specified USB flash drive or mobile hard drive.

On Win7 systems, we can do this through Group Policy. By setting it is possible to disable all USB storage devices, and also allow the system to use only the specified USB flash drive.

Step 1: Insert your U disk into the Win7 system first, let the system use the U disk normally, then enter the “Control Panel” and double-click “Device Manager”. Expand “Portable Devices”, you can see your U disk inside.

Step 2: Click the right mouse button to select “Properties", click the “details" label in the pop-up "Properties" window, and then on the device"properties" In the drop-down box, select “Hardware ID”, the following "Value" will appear in the string, this is the hardware ID of your U disk, copy it and save it.

Step 3: You also need to copy the hardware ID of the "Universal Serial Bus Controller" in the "USB Mass Storage Device", in the "Device Manager" and "General" Serial Bus Controller & rdquo; list, find "USB Mass Storage Device", click on the "Details" tab in its "Properties" window, copy its hardware ID and save it.

Step 4: After finding the hardware ID of the USB flash drive, you can implement it through Group Policy. “Start →Run”Enter“Gpedit.msc”Open the Group Policy window, expand “Computer Configuration →Management Templates & Rarr; System & Rarr; Device Installation & Rarr; Device Installation Restrictions, double click on the right side It is forbidden to install devices that are not described by other policy settings. In the pop-up window, select “Enabled”, and then click the “OK” button to set it to disable USB devices that are not described by the policy.