My macbook pro won't open games that weren't purchased in itunes store. How do I change the preferences for downloads?

My macbook pro refuses to open games if they weren't purchased from the apple store. Message says my security settings prohibit opening game. How do I reset the security settings?

iMac, Mac OS X (10.6.7)

Posted on Apr 29, 2013 5:23 PM

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My macbook pro won't open games that weren't purchased in itunes store. How do I change the preferences for downloads?

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