How to make my screen Bigger ?

Hello,

I just installed a new harddrive on my laptop C840,my screen is way too small.

I installed a new driver the most I can do to bring  the sreen  close  where I can see is 1600x1200 ,I want to adjust it with larger fonts and closer to me

Is there anway I can adjust that I also check the Bios everything was fine .

Another problem Im running to,my speaker wouldn't work ,I downloaded a new driver still wouldn't work

Please help Thanks