If you see black labels at both sides of screen you have to change screen properties in your Graphics Cards's main panel, I mean open yout Intel's main panel, go to Screen or Resolution section or tab, then search through an option that might be like "Image Scale" or something like that and change it to: keep scale

Important note: if you see it in grey color, you might first change your resolution to a lower one, then you would see it enabled or with more options :)