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If a user tries to install a new device in Control Panel, the Add Device icon in the relevant folder (for example, in the Scanners and Cameras folder) is missing.
This behavior can occur because a user who is not a member of the Owners group cannot install a device by using the Add Device Wizard.
Note: If a member of the Owners group has installed a device, users who are not members of the Owners group cannot access or use the device.
With non-Plug and Play devices, only users that are members of the Owner group can install the device. Because the non-Plug and Play devices do not auto-detect, there is no way to start the Add Device Wizard.
With Plug and Play devices, if the driver is supplied by the operating system, a non-owner should be able to install or use the device if it is auto-detected and installs without user intervention. However, if there is a prompt for a driver disk, a non-owner will not be able to install the device.