Here's a search on how to turn off a common setting.
I supply the search since you can choose the answer you understand. Flash was changed recently and that change is easy to undo to see if that's it.
My computer freezes when I watch videos on you tube . Not every time but when it does I have to restart the computer to access the internet and e-mail. If I don't restart it all I will get is the arrow going around waiting and it will never stop. Is this a virus or what ? How do I stop/ repair the problem ?