I'm running10.8.5. I have tried to install a programme but can't because it is from an unidentified developer. the box says-Your security preferences allow installation of only apps from the Mac App Store and identified developers.how do i install the pro

i'm running10.8.5. I have tried to install a programme but can't because it is from an unidentified developer. the box says-Your security preferences allow installation of only apps from the Mac App Store and identified developers.how do i install the programme

macjack gave you the easiest solution. Need to have admin privilieges to change this option.

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