Can't Acess Any File Because Turning Off The Administrator Write And Read Permission

[revanosatria]

Hei guys , im in big stress now , look i accidentally turning off administrator access for macintosh Hd and now i can't access my file in my macbook ,it shows only blue screen after i restarted it.
How can i fix this ?
How can i access as system administrator, i only turn off administrator access not system administrator , so i want to login as system administrator , can anyone help me with this ?

 

[Darth.Titan]

You could boot into single-user mode and do some command line work. Hold command-S at startup to get to a shell prompt, then try something like:

mount -uw /
chmod -R 755 /
reboot

If that gets it to boot, you'd better run Disk Utility and run a permissions repair ASAP.

Now that I think about it the easiest, safest solution would be to boot from your OS X install CD and open Disk Utility and run the permissions repair that way.