I have been using windows 7 for some years now. Compared to other O.S available in the market, it is the best O.S which is very easy for handling of GUI. It takes around 45 minutes to install the windows 7 O.S.
The minimum requirements for the 32-bit include a 1GHz processor, 1GB RAM, 16GB available hard-disk space, and a DirectX 9 graphics device with WDDM 1.0 or higher driver. 64-bit systems will require at least a 1 GHz processor, 2GB RAM, 20GB of free space on your hard drive, and a DirectX 9 graphics device with WDDM 1.0 or higher driver. My laps default OS Windows 7. It is stable, smooth, and highly polished, introducing new graphical features, a new taskbar that can compete handily with the Mac OS. Resizing programs has been simplified and improved by the capability to drag a window’s title bar. Drag a program window to the top of your monitor to expand it to full screen.