DELL restore not working

Question

I have the Dell XPS M1330 and it came with Windows Vista Home pre-installed but I did a stupid thing and installed Vista Professional over it now I can't restore it to its previous state.

I can still see the restore drive but I can't seem to restore it? Any tips?

I want to restore it back to factory settings.

EDIT: When I reboot and press F8 I don't have any options for repairing my PC - boot to windows etc.

Answer 1

Installing Vista Professional may have just overwritten the boot menu which contained the option to boot into the recovery partition.

You may be able to use EasyBCD to search for the recovery partition, add it back into the boot menu and then boot into it as you were trying to do.