Making your personal wallpapers is not such a difficult thing as described in the link. Place your wallpapers in a folder. Now, right click on the desktop, personalize, and select wallpapers. Beside the picture location, there is the browse button. Click on it to browse to the folder containing your walls. Now adjust the position and shuffle, and click on save changes.
In my computer, there is folder containing birds' pictures. I am setting this folder as the windows wallpaper collection now ... like this screenshot.
You may have a System Restore
to get rid of the registry edit , using a just previous restore point .