After you have chosen the type of wallpaper you want, you need to decide the resolution of the wallpapers that you want to download. If it is a nature related wallpaper, then it contains lovely landscapes, mountains, rivers, valleys, sunsets, sunrises, ice covered rivers and lands, fishermen, bright moon and the mellow moonlight shimmering on the rivers etc. There are often cool free wallpapers which are 3D and have some special effects like graphics and animations. Animated wallpapers are no doubt favourites of many because the cute animals, waterfalls and even tigers and humans can move as if they are real, right on your desktop. So you might be able to scare the hell out of your friend who might switch on the computer only to be greeted by some haunted house or a Halloween pumpkin or a spooky skeleton. There are Pokémon and cartoon character free hot wallpapers of Shrek, Aladdin, Mickey Mouse, Donald Duck, Tom and Jerry and many more.
Such cool free wallpapers will invariably have many latest features like high resolutions. Depending on your computer configuration, you can go for different kinds of free wallpapers. You can download as many of them as you want and you can still delete them at your own wish if you do not like them or if they do not suit your computer settings. The resolutions of such free wallpapers can be 1920 × 1080 for High Definition (HD 1080i, 1080p), 1280 × 720 (720p), 800 x 600, 720 x 364, 768 x 480 etc. The 'p' in the resolutions stands for pixels. If the pixel is higher, then you will get better, beautiful free wallpapers.