|Kind of difficult to tell. |
Are you using the disks that came with the system or did you make them.
I'd assume you typed in one of the keys wrong if you have the MS produced disk in your hand and the key for it.
Most restores don't need a key but it see the owners manual for exact how to's.
There might be a recovery partition that you can access from booting by a key combination. Might be F8
Playing to the angels
Les Paul (1915-2009)