Actually I was quite right indeed as I never mentioned XP, I did day Vista and 7. The reason for this is the Anytime Upgrade option so that every edition is on every DVD but you still need to purchase a license.
You are right, but Burgurne has also right about XP, but XP did not have that Anytime Opgrade option.
I2aMpAnT, you did not mentioned XP, so Burgurne, try read a little harder

My Computer
- OS
- Windows 7 Ultimate x64
- CPU
- Intel E6850 3,0 running 3,6 Ghz
- Motherboard
- Gigabyte DS4 P35
- Memory
- 2x2 and Gb Corsair PC6400 CAS5 - 4GB total
- Graphics Card(s)
- Nvidia Geforce 260GTX
- Sound Card
- Creative X-Fi Fata1ty Gamer Extreme
- Monitor(s) Displays
- Samsung 2493hm
- Screen Resolution
- 1920*1200
- Hard Drives
- Intel X25-M SSD for system
2x 1Tb Samsung F1 as seperate discs
- PSU
- Zahlman 850HP
- Case
- Shg
- Cooling
- Evo 120
- Keyboard
- Logitech G15 (blue backlight)
- Mouse
- Logitech G5 laser
- Internet Speed
- 25/25 mbit
- Other Info
- 1 Samsung SATA dvd-burner
1 LiteOn SATA dvd-burner