Colours on screen in video

you need to adjust the settings in either the video settings by right clicking on an empty spot on the desktop and selecting properties, then settings, then the advanced tab, that will allow you to bring up the video settings where you can actually adjust the 3d and color settings for the "video", not the desktop but the "video". that will alter the way the moving pictures and video look, also there are also settings in whatever "player" you are using also in the properties menu of media player, win amp, etc, they all have setting controls.