For those who would like to display Windows version number on Desktop, there is a Registry key to do this.
As shown in this screenshot, I’ve the Windows 7 print its build number (7601 indicates service pack 1) at bottom-right corner (where the date/time normally shown):
Open an elevated Command Prompt window to run reg.exe as this:
By setting PaintDesktopVersion value to 1, you should see the effect on Desktop after log off Windows and log on again.
reg add "HKCU\Control Panel\Desktop" /v PaintDesktopVersion /t REG_DWORD /d 1 /f
By setting PaintDesktopVersion value to 1, you should see the effect on Desktop after log off Windows and log on again.