Just wondering a few things:

1) In XP to fix the boot sector or the MBR you booted off the CD and went to
the first repair prompt and into a DOS look alike in order to run a few
commands to fix those things and of course check for disk errors etc.

2) To do a repair install in XP you booted off the CD and went to the second
repair prompt and chose it to do a repair install.

I have Vista Business upgrade so if i need to do either of the things above,
how do you do that with Vista Business (or any Vista, really), please?
Thanks.