There are two possible reasons for that issue. Either the owner used it to look up way too much internet porn with a light duty computer or they used the wrong method to clean out the viri they got from the internet porn....... One should not try to eliminate a computer virus by pouring vodka, beer, schnapps, whiskey, scotch, WD40, Windex, Colt45, Thunderbird, Ripple or Holy Water over the CPU