My wife has an Advent 8117 laptop with Vista Home Premium installed and a hidden recovery partition.

I'd like to install Ubuntu on it as she only browses and emails with it and recently came a cropper with some spyware she picked up with IE.

What I'd like to know is - how can I ensure that I can revert back to the original setup if she decides she can't live with Linux?

I know that, under normal circumstances, I could use the Windows recovery console and use fixmbr but that would not restore the option to use the hidden recovery partition would it?