Microsoft Windows Vista gets DirectX 11
Platform Update for Windows Vista 971644 is going to bring support for DirectX 11 to Windows Vista users.
Windows 7 already comes with DirectX 11 so this is good news for Vista owners with compatible graphic cards.
This update is likely to be available directly from Windows Update on relevant [...]

Valve: majority of gamers are still on Windows XP
Microsoft might have practically discontinued their Windows XP operating system but it remains the preferred operating system for gamers.
Valve has released the latest Steam user metrics and majority of gamers on this platform are still using Windows XP operating system.
Looking at the stats, 68% of Steam users [...]