At beta versions of MS Windows it’s common to see the OS version details at the right bottom of the desktop, in the front of wallpaper.
It is not just a privilege of beta versions, you can make visible those OS version details by do some registry changes.
In particular open the Registry Editor (
regedit.exe), go to
HKEY_CURRENT_USER\Control Panel\Desktop key, open the
PaintDesktopVersion value and change its data from