Hi, what is the problem you are trying to repair? Although a Norton 6 bootable CD (from OS 9m though) will repair any HDD problems you have, it is hard to tell what you need. If rharder's fix didn't help, could your problem need a different fix?
the problem is that in system preferences i cant choose any of the two Mac OS.
the lock button to enter my password its in grey and dont let me use it.
so what i have to do to repair this problem , because this problem happens in other items at the system preferences.