How to find deleted browsing history

I have checked my sons computer thoroughly and he has everything set on "delete browsing history". I know he is up to something but I cant find many sites he has visited. After some research I found a few sites somehow on his computer that are bothersome but it wouldn't let me click on any of it to get the details. Is there anyway to find specifics after ALL browsing history has been deleted? He is getting on some chat sites and I need to find out more. I'm not real great with technology so "lamans" terms would help me a lot. Thanks for your help.
Asked Oct 17, 2015
you cant
Answered Dec 29, 2015

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