It is annoying the build info sticking in the wallpaper even sometime the windows got activated using other activation methods.
so I just want to write simple steps to remove it easily.
there are few .dll and reg tweaks also possible to remove it but we just gonna use simple freeware tool.
1 .Download the tool from here
2. Just extract and open it as an Administrator
3. Click “Install” right down side of the newly opened wizard , it will sign out from the current session so you have to make sure you close all other apps & windows.
Sign in to windows now you see the magic, yes its gone now.