Try Not To Panic
Whenever my computer freezes now days, I just walk away from it. That is about the only thing you can do because the more stuff you click, the more you are telling it to do and it has to go back through all those processes when it thaws out. Freezing can come from a number of random things like not enough memory or a hard drive that needs a good de-fragmenting. You can buy software to help the computer run faster.
