1920x1080 resolution on a 15.6" screen too small

Hello
This is my first post in this forum, please I need some help regarding this issue.
I have Lenovo G50-45 15.6" laptop which has a native resolution set to 1920x768 which makes everything too congested.
I too have another 15.6" laptop which has a 1366x768 native resolution and this resolution is perfectly set, not too small not too big.
Initially my Lenovo G50-45 was set at 1366x768 only, but then I gave my laptop for repair and after that it changed to 1920x1080.
Is there anyway I can restore it back to the previous set resolution of 1366x768?

Thanks

http://www.eightforums.com/tutorials/5572-screen-resolution-set-displays-windows-8-a.html

Here are a few ways so that you can try to change the resolution.

http://www.eightforums.com/tutorials/28310-dpi-scaling-size-change-displays-windows-8-1-a.html
You can try changing DPI settings as well