Hi there, I need some help regarding OS X Yosemite, i recently changed directory name on my mac and after restarting the mac it seems that i have lost all my data and settings. I want to know are there any steps to bring back all the settings and data. This is what i did. 1:Went to System Preference. 2:Opened Users and Groups. 3: Authenticated it. 4: Right Clicked on Admin Account and went to advanced setting. 5: Changed directory name from ABC to XYZ. 6: Changed my name from ABC to XYZ. 7: Saved setting and it restarted itself. 8: Logged in back after restart and it seems all my data, home folders and settings are gone. Please help me to get back my old settings and data. Your help will be greatly appreciated. Device Name: Macbook Pro, 13 Inch, Late 2011 Thanks a lot for reading about my problem even if you couldn't help still i am thankful that you tried. Many thanks and kindest regards.