Pc freezing from browser flash.

[sparky4601]

Having a problem with PC freezing when playing flash. I am running a AMD 1090T with a 890gpa-ud3h MB 8gb of corsair 1866 ram, a gtx 550 ti video card and a seasonic 760 power supply. I am running windows 7 64 bit on a vertex 3 120 ssd. All drivers are up to date. It does it in Chrome and firefox. It freezes at random times sometimes 3-4 times in a matter of a half hour sometimes i can go a day or 2 without any crashes. I have scanned my pc with malwarebytes, cleaned registry with CCleaner, I am running Eset as a anti virus. my disks are all defragged. I have attempted everything I can think of shy of a fresh install. but this has done this ever since a fresh install. I have changed power supplies, video cards, oh and my system is water cooled so its not overheating. Any advice would be appreciated. Thank you in advance! Oh and everything freezes. mouse keyboard everything . I can wait about 5 minutes I usually get a flash crash report. Shockwave and firefox flash error. I even get firefox flash error when freezing using chrome. and have uninstalled and reinstalled everything i can think of as well.