Active Directory - System Requirements
| Microsoft Windows XP | Professional | ||
| Microsoft Windows Vista | Professional | Ultimate | Business |
| Microsoft Windows 7 | Professional | Ultimate | Enterprise |
| Mac OS | 10.3 and above |
How to check your operating system version in Microsoft Windows?
1) Click "start" or the start orb on the bottom left hand corner of your screen.
2) Right-click "My Computer" or "Computer", and then click "Properties"
3) Under the "General" tab, your operating system version is shown under "System"
