How to retrieve Win7 wallpaper after being tampered with

Win7 wallpaper has been tampered with how to do? What do you like to lose wallpaper? Win7 pre-installed system to help you find lost wallpaper! Windwos7 system provides wallpaper restore function, the following will use two examples to show you how to find your favorite wallpaper .
Operation steps
Run the registry, and then expand the branch to: HKEY_CURRENT_USERSoftwareMicrosoftWindows CurrentVersionPoliciesExplorer, (If there is no "Explorer", please create a new item, then rename it to "Explorer"; in the blank window on the right Right click, create a new DWORD 32-bit key, rename it to “NoSaveSettings”, double-click the name, and change its value to “1” in the pop-up window.