How can you find out which is your native resolution
Go to start menu and type control panel in search box, and press enter
Now, in search box from top right corner type this : resolution and select Adjust diplay resolution
Which is your resolution ? you see 1920x1080 (recommended) ?? that is my native resolution
This guide is for users that want to know exactly native resolution for : PC Computers , Laptops , Ultrabooks , Smartbooks , Notebooks, Netbooks or any windows devices.