If you don't have something to tell you how hot it gets, you can download SpeedFan. If any of your temps are over 50 degrees C, that's a problem. If you've had this laptop over a year and haven't used compressed gas to blow out the air ducts, you should. Often that's all you need to do. You might also want to boot to Safe Mode and check for viruses.
My laptop isn't working properly it can only perform several tasks and then it says the program is un-responsive.
I can't even shut down without having to hold the button or else when I do it the normal way, it just stays on the main screen with no icons., so I have to hold it down regardless. I press ctrl alt delete and it takes about a minute to go to a black screen that says it couldn't do this.
Some icons have also lost their pictures, I don't know if that is relevant or not but anyway I also do registry clean ups and optimizations regularly but I think my laptop is dying even though it is around 9 months old. (Possibly because I play a MOBA game called smite, on the lowest quality but it gets very hot sometimes, it is core i3 and I don't know how much GHZ.
Dan (Toshiba laptop)