One User, but it doesn't have administrator privilages.

[ClearRPG]

I need to go into startup disk in system preferences so I can boot from my Macintosh HD. I am currently running on my external HDD, it will not let me unlock it without typing in administrator pass and user. I am the admin on my other HDD. I am the only user on this so.. I do not have administraor privileges but cannot change it because I cannot unlock it. What do I do? What do I type in to make changes in system preferences? Will I ever be able to run off my internal Hard Drive again? help please!

 

[stroked]

Turn off your mac, unplug the external HDD, then restart your computer holding down the option button, choose your internal HDD

 

[ClearRPG]

Will I lose anything?

 

[pdjudd]

No

 

[stroked]

Will I lose anything?

No, it is the same thing as start up disk in system preference, just a different way to get there.