Quote: Originally Posted by antares
Finally, what is the main purpose of having a dual boot system? Testing the new OS? Have the choice of driver
If I may expand on Brink's answer to your last question... Probably the biggest reason to have access to two totally different OSes, like Windows and Linux. There are things you can do with Linux you can't do with Windows, and vice-versa.
A close second would be to try something new. A lot of people like to dual-boot when a beta of a new OS comes out so they can test it without screwing their working system.
Maybe the third most common is when you upgrade to a new OS, then realize that a program you use all the time isn't compatible. For me, when I went to Windows 7, I found out that an older game that I was playing on XP didn't work very well. I wanted to keep Windows 7, so I came here to find out how to dual boot so I could finish it up on XP.
In my opinion, if you don't have some sort of pressing need to have multiple OSes AND
if you aren't really comfortable messing with your system, I would leave it as-is. As Brink said, this kind of thing is NOT risk-free, and it can sometimes be a total pain in the rear to get it working right.