I use Windows Vista Ultimate, and have four disks of 500GB. Windows is already installed on one disk, the systemdisk.

Now I would like to mirror the system disk using Windows built-in software raid. How do I activate it?

What do I have to do in the systemdisk? do I have to transform it to a dynamic disk first? How about the other disk, should I format it first and then transform it to dynamic, anything more I have to do?