Buttons suddenly opening programs

Hey all, I'm having a problem with my other computer. Someone else used it and I'm not sure if they did something, but whenever the '1' key is pressed, my calculator opens, whenever my '`' button is pressed, windows media opens, whenever the 'esc' button is pressed, Google Chrome opens, and when I press 'tab' the help menu opens. I've check the keymapper program and found nothing, and none of these programs are set up with a short cut. I don't know what it could be and I need help changing my computer back to normal. Any one know what's going on?

 

Did you try a restore point before the person had access to your computer? If so, what were the results?

 

No, no restore point. But it seems the keyboard was just worn out. Tried it on my other computer and got the same results, so I just replaced the keyboard. Works fine now, but thanks for the help.

 

Thanks for letting us know that the problem is solved and what you did to solve it.