I got a new MacBook Pro 13 (2.66GHZ) from my University. When I tried installing a new, larger HDD I discovered that I cannot boot up from the Install disc and therefore cannot install OSX on the new drive. I tried holding C but nothing happens (just keeps showing the folder with the question mark). When I press Option while booting, I do get a screen with a lock and it asks for the password which I dont have. Now when I try putting the original HDD back, it wont even start (but it works fine in the external enclosure). I also cannot make changes to accounts nor enable the disabled automatic login. Where do these restriction live if they are not on the hard drive? RAM? Somewhere on the logic board? How could they be circumvented? I am currently having the battery disconnected and will wait for 48 hours to see if that will reset the whole thing.
