How to reset PRAM/NVRAM on OS X Mountain Lion?

Answer

jlister
Vote Up (18)

You can zap your PRAM/NVRAM by restarting your machine and pressing Command+Option+P+R. Make sure to hold keys down until it restarts. I would continue to do it until it restarts again, but I'm honestly not sure whether there is any benefit to doing so or if it is an old Mac wives tale.  

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