3840x2160 Microsoft Wallpaper Windows 10">

FYI, Just Delete the c:\windows\WEB\wallpaper\Windows\img0.jpg ,Do not replace it. It will auto recreate itself from one of the default wallpapers in C:\Windows\Web\4K\Wallpaper\Windows that you replaced. To enforce the new wallpaper, point your policy to the c:\windows\WEB\wallpaper\Windows\img0.jpg

3840x2160 Microsoft Wallpaper Windows 10">

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