Changing OS settings and enabling installation with Mac OS X 'Mountain Lion'


There are some limitations when a current driver from the website is used with Mac OS X 'Mountain Lion'

With the default setting (called 'GateKeeper') of the OS, the following message or similar will appear and prevent startup:

"MAC_OS_Lion" can't be opened because it is from an unidentified developer.

Your security preferences allow installation only of apps from the Mac App Store and identified developers.

NB: Please note this message will not appear during installation from the CD

Please follow the process below to launch OS X Lion supported software downloaded from the web or attached to an email:

(1) Press the Control key and click software
(2) Select “Open” from the pop-up menu
(3) Click “Open”

Alternately, you can change the default settings of Gatekeeper; to do this go to 'Security & Privacy'


Click on the padlock at the bottom left to make changes


Enter an administrator password to edit your preferences


Select "Anywhere" and then "Allow From Anywhere"


See also

Product support

Show product

Product finder