Got a panic call from a buddy saying he picked up a virus, spent a couple of hours trying to find the cause if his sudden slow down. I had asked if any software was down loaded he said no, then after all that time he says I did update Flash. First question did you uncheck the McAfee box, answer what McAfee box. Well another half hour up rooting McAfee and all was back to normal, McAfee was causing a conflict with his other security software.
To all when down loading any update/program not just Flash, open your eyes look for the tiny not to obvious check boxes and uncheck them. It will save many hours of frustration for you and anyone helping you.