Currently Being ModeratedJan 19, 2013 2:20 AM (in response to Georgedm)
Currently Being ModeratedJan 19, 2013 2:41 AM (in response to mende1)
I have changed the setting from "ready only" to "no access" thinking that this would block access from other users to my macbook. Now I have no access to my Air. I didn't realized that I am an everyone! :)
Currently Being ModeratedJan 19, 2013 2:46 AM (in response to Georgedm)
If you do it only for your user, you can try resetting permissions > http://osxdaily.com/2011/11/15/repair-user-permissions-in-mac-os-x-lion/
If this doesn't work, open Disk Utility from Recovery (if you have OS X Lion or Mountain Lion, pressing Command and R keys while your Mac is starting) or the Mac OS X DVD (if you have Snow Leopard or older, pressing C key while your Mac is starting), select Macintosh HD in the sidebar and repair permissions.
If this doesn't work, reinstall Mac OS X