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Thanks to: http://4sysops.com Defining the restriction One important thing to keep in mind is that Microsoft made it MUCH easier to control removable drive access in Windows 7/Windows Server 2008 R2 Group Policy. If you need to restrict USB drives on earlier client operating systems (including Windows Vista), then one of the following links should prove helpful to you: How can I prevent users from using USB removable disks (USB flash drives) by using Group Policy (GPO)? Group Policy..Block USB HOWTO: Use Group Policy to disable USB, CD-ROM, Floppy Disk and LS-120 drivers Step-by-Step Guide to Controlling Device Installation Using Group Policy Now then: from one of your Active Directory Domain Services domain controllers or from an administrative workstation, open the Group Policy Management Console and link a new GPO to the appropriate target (domain, OU, etc.). Within the Group Policy Editor, navigate to \Computer Configuration\Policies\Administrative Templates\Sy