what if you don’t have a disk?
the only disc I could find was for 7 for a another laptop here, but that’s a Dell and mine’s a Toshiba.
Sorry if I missed it, but what OS? The bootrec command will work on any OS post-XP. If you’re using Vista, the Win7 bootrec command will work to repair the MBR.
Just follow the instructions and try it.