Mac book air restart lost all my settings
My mac book restarted itself and now its back to the default settings. All my info is gone. What happened and how do I fix it?
If all your files are missing
You may have logged in as a different user, such as Guest. Open the Users & Groups pane in System Preferences. Your name should be at the top of the user list, under Current User. See also this support article.
If files are missing from one folder
Change the Finder view mode; for example, from icon view to list view, or vice versa.
If files are present, but seem outdated
You may have started up from a different volume (disk.) Open the Startup Disk preference pane and check the selection.