At complete random my numlock came on and will not turn off. Ive taken the keys off to ensure nothing is stuck under them. i have also cleaned the keyboard with air cans. i am unsure why its on but i cannot figure out how to turn it off. thus my keyboard and trackpad are rendered completely useless until i find a way to turn this off. i am currently using my phone to control my laptop to post this. any help would be huge. thanks in advance.