Wallpaper or desktop background) is an image, appears in desktop screen. Changing Wallpaper is a very basic customization. In Windows 8, you can see there are other background patterns appear in Windows 8 Start Screen. In this article I am not pointing those patterns. This article will only show you how to change Desktop background in Windows 8. The process is not different from what was in the other versions of Windows Specially Windows 7 and Vista.
Windows 8.1’s new Start screen has been hotly debated since the operating system launched in preview mode earlier this week. Acknowledged by some as a bold step into the tablet market, and criticized by many others who prefer the familiar desktop experience, the new 'Modern UI Style' home is here to stay. The lock screen on Windows 8 and 10 isn’t just a background image or slideshow. It can display notifications and detailed status information from a variety of apps. You can also access Cortana directly from this screen.
Steps to change Wallpaper or Desktop Background
1. Right-click on the empty space of desktop and select Personalize.
2. Click on Desktop Background, at the very bottom of the window.

3. Click Browse and select your desired picture. You can also select whole folder, containing multiple images. All images will be appeared as thumbnails.
4. Next if you want that your desktop background will be changed automatically, then select your desired photos and select the time interval, after which wallpapers will be changed automatically. If resolution of your selected Desktop background is higher or lesser than your screen resolution, you can choose any of these options; Fill, Fit, Stretch, Tile, Center, according to your requirement.
5. Finally just click on “Save Changes” and your selected desktop background will appear.
If you have selected multiple images to rotate automatically after certain time, you can also manually switch to the next wallpaper anytime by clicking on Next desktop background option in desktop context-menu (right-click menu).
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The default Windows 8 Developer Preview Start screen background is not appealing. If you decide to change the background, you won’t find any option under Control Panel for the job. The background image can only be replaced by editing a system file which is a difficult task for most of Windows 8 users.
Windows 8 Start Tweaker is a fantastic utility to change the default Start screen background with a custom one. Unlike other tools, this tool also lets you change Metro background color as well.
Windows 8 Start Tweaker to change the Start screen background
Step 1: Download Windows 8 Start Tweaker zip file from here. Right-click on the zip file and select Extract all option to get Win8StartTweaker.exe file.
Step 2: On the first run, you might see the Chinese language. Worry not! Click on the US flag (located at the bottom right) to change the language to English.
Step 3: Click on the default Start screen background image to select a new image file. For best results, select an image file whose height is double than the screen resolution. For example, if your screen resolution is 1440 x 900, then the height of the image file should be x1800 px.
How To Change Background In Windows 8 Start Menu
Step 4: Click on Metro background image to set a new Metro background color. This color covers the logon screen, Start screen search and some other areas.
Step 5: Finally click on Apply button to see the change. Click Yes for the prompt to automatically log off and log on your system to apply the changes. Even though the tool lets you restore the original background and color, do make a system restore point so that you can revert to the original Start screen background and Metro color without any issues.
Windows 8 Start Screen Tweaker is a freeware and works great on both x86 and x64 versions of Windows 8. Want to change Windows 8 Metro Start button as well? Check out our how to change Windows 8 Metro Start button guide.