They call about my computer and my tech says I have no problem

Got one of these calls last night from same number.  Claiming they had identified a problem with my computer and needed me to be sitting in front of my computer so they could fix it.  First, the guy could barely speak English.  Second, I'm not that naive.  Told him he could stop his crock of crap right now and he hung up before I could finish lambasting him for trying to defraud people.  Going to report the number to the fraud department today.