Few days ago, I installed a new Operating System (Windows Vista) into my current Windows 7 laptop..
I was doing so because the online game that I wanted to play, cannot support (compatible) with Windows 7 and it crashed everytimes I enter to the game.. Thankfully, now with the new Windows Vista in my laptop, I can play the online game as normal..
With the two Operating Systems (Windows 7 + Windows Vista), I will have an option during the boot to choose either to run as Windows 7 or Windows Vista.. Hence, I would use the Windows 7 for surfing internet and movies while Windows Vista would be used as gaming..