You can change the screen resolution to adjust the size of the characters and images on the computer screen.
Refer to Windows Help and Support (Opening Windows Help and Support) for more information.
You may not be able to play high-resolution videos depending on the amount of video memory on your VAIO computer. In such a case, lower the screen resolution.
Do not change the display resolution while using video/image apps or playing DVDs, as it may cause unsuccessful playback/display or unstable system operations.