Windows 8 is upgraded version of windows 7. But this functionality is poor. I give preference windows 7 more than it. This not much easy to use. It has many changes in itself. This does not support many softwares. It also hangs during work.
This also takes some time to install. This services are average.
It also has some features but that all are waste if they are not working.
Boot time is very much. It takes much time to start up. And also take much time during shutdown.
Service and support is good.