Windows 7 is still in beta, hence you should think twice before installing it.
- Do not install it on a partition with another OS on it
- Do not install it on a partition that is currently actively used
- Be prepared to loose data on your Windows 7 partition
- Windows 7 beta will expire in August, 2009
Especially XP users should not install Windows 7 beta on their main partition since they do not have the latest drivers, which Vista users already have. Therefore you will have a hard time to update all your drivers.
VirtualBox allows you to run different OS’s through a software application. This is the easiest way to test Windows 7, by far! It is also the most secure way.