Prevent Users from Writing to USB Drives

by Eric Geier [Published on 27 March 2012 / Last Updated on 19 July 2011]

Allow read-access, but prevent copying to USB drives for security reasons.

As another tip discusses, you can prevent users from installing any new devices (including USB drives) via Group Policy. However, if you only want to block write access to USB drives, you can add this registry entry. Users could plug in drives to access and copy files to the computer but can’t copy or move files onto the drive.

Create the following key and DWORD value:

Key: SYSTEM\CurrentControlSet\Control\StorageDevicePolicies
DWORD Name: WriteProtect
DWORD Value: 1


See Also

The Author — Eric Geier

Eric Geier (Dayton, Ohio) is a Freelance  Tech Writer and Author specializing in computer networking. He's also the Founder and Owner of NoWiresSecurity, which provides a hosted cloud-based RADIUS service to help businesses easily secure their Wi-Fi networks with the Enterprise (802.1X) mode of WPA/WPA2 security. He’s also the Founder and Owner of On Spot Techs, which provides on-site computer and technology services.

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