Yesterday at dinner table, few of my tech friends and I were discussing release of Windows 7 by Microsoft. the little chit chat soon turned into a heated debate. Operating systems choice is a very subjective matter. There is no one-size-fits all OS. Each person choose his OS according to his personal taste and requirement. Most people currently use more than one Operating systems. Windows is such necessary evil that everyone has to use it at. There is no escape from Microsoft Windows. Although the list of free operating systems is growing, we still needs windows for majority of tasks(this statement was most controversial last night).