Windows 7 is very good operating system. Windows 7 is most popular operating system till now. It is the extend version of windows xp.
Now a days I am using Windows 8 but before that I was using Windows 7. As I used this os for more than 2 year, I can say that is very good os even it is better than windows 8. People liked this os due to its user friendly, Easy to do any task, andvery simple icons. I also liked this operating system because I like the performance and its simple graphics.
It also gives a regular updates time to time.