I can't sign in on my laptop one of the buttons not pressing

An update wouldn't make a button not work. You can try an external keyboard to see if that will work. Should that work, the the attached keyboard may need replacing.

Otherwise we cannot assist in bypassing any log in requirements. Please read the following thread...http://www.tomsguide.com/forum/id-2317968/read-passwords-lock-codes-pin-numbers.html