Unable to boot Vista

#1
Hello,
I’m unable to fire up my laptop due to the following message:
“Bootmgr is missing Press Ctrl+Alt+Del to restart”.

I’ve amended the BIOS setting to boot from the DVD/CD Rom first.
In that drive I have the original Windows vista Home basic Recovery DVD.
However when I attempt to boot up from here I’m presented with the same aforementioned message.

Can anyone offer any advice?

Many thanks