As you know that windows XP is the oldest OS among these, and because there are many new applications and programs which are not supported by win XP. Even from Aug. 14, 2014, all support for Windows XP ends. So you won’t even be able to get security patches, and your computer will be open to newly-discovered threats with no way to protect you. That’s bad.
Now if we talk about windows 7 and windows 8, it is still a hot topic of debate that which one is better. Both of them a equally efficient and good. But i have heard most of the people complaining about the user interface of windows 8. If you are using a touch screen laptop then you may go with windows 8 and if you are using a normal laptop/computer and you want your work to be easy and smooth then use windows 7.

As you know that windows XP is the oldest OS among these, and because there are many new applications and programs which are not supported by win XP. Even from Aug. 14, 2014, all support for Windows XP ends. So you won’t even be able to get security patches, and your computer will be open to newly-discovered threats with no way to protect you. That’s bad.
Now if we talk about windows 7 and windows 8, it is still a hot topic of debate that which one is better. Both of them a equally efficient and good. But i have heard most of the people complaining about the user interface of windows 8. If you are using a touch screen laptop then you may go with windows 8 and if you are using a normal laptop/computer and you want your work to be easy and smooth then use windows 7.