Disable USB Storage in Windows 7

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  • Edit the following registry key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor
  • Change "Start" to hexadecimal "4".
  • The change will happen immediately and the user will not notice anything. If any USB storage devices are already mounted they will stay mounted. If they are unmounted and re-attached the system will not mount the drives.

GPO

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