GPO - WMI Filtering

This options you have to filter for the different systems:

Windows 2003 of Windows XP

select * from Win32_OperatingSystem where Version like "5.2%" or Version like "5.1%"

Windows Server 2008/Vista 

select * from Win32_OperatingSystem where Version like "6.0%"

Windows 7/2008 R2

select * from Win32_OperatingSystem where Version like "6.1%"

Windows 8/Server 2012

select * from Win32_OperatingSystem where Version like "6.2%"

Windows 8.1/Server 2012 R2

select * from Win32_OperatingSystem where Version like "6.3%"

With the OR command you can Mix and Match even.

Windows Server 2008/Vista of 2008 R2/Windows 7 of Windows 8.1/Server 2012 R2

select * from Win32_OperatingSystem where Version like "6.0%" or Version like "6.1%" or Version like "6.3%"