How to Fix Blurred Background Wallpaper Pictures on Desktops
A desktop wallpaper is an image that loads on your computer screen shortly after booting up your computer. These images can be just about anything, from a picture of a beach to a photo of your friends. By default, many computers have their desktop wallpapers automatically stretch to fill their monitor. This can cause blurry images in those who have large monitors or a high screen resolution. Fortunately, you don't have to settle on picking a different background image. Instead, you can change the way your computer displays the image, allowing the image to become unblurred.
Navigate to your desktop and right-click anywhere on the screen. A pop-up menu will appear. Select "Personalize." This will open the personalization menu.
Click "Desktop Background" from the personalization menu. Towards the bottom of the screen you will see the "Position" option. By default, the position will be set to "Stretched."
Change "Stretched" to either "Tiled" or "Center." Tiled will repeat the image, while center will position it in the center of the screen.
Click "Apply." Your monitor will go black for between 30 seconds to a minute and may flash a "Please Wait..." message. Once the monitor comes back on, the wallpaper image will no longer be blurry.