upgrading from snow leapord to mavericks, i couldn't opened app store, messenger, ibook,FaceTime, maps and other. please help
MacBook Pro (13-inch Mid 2010), OS X Mavericks (10.9.2)
Try booting into the Safe Mode using your normal account. Disconnect all peripherals except those needed for the test. Shut down the computer and then power it back up after waiting 10 seconds. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. When you reboot normally, the initial reboot may be slower than normal. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application un-installer. For each disable/delete, you will need to restart if you don't do them all at once.
If that doesn't work, do a backup. Boot to the Recovery Volume (command - R on a restart or hold down the option key during a restart and select Recovery Volume). Run Disk Utility Verify/Repair and Repair Permissions until you get no errors. Then reinstall the OS.
thank you. i've tried the first one but doesn't work. need to do a back up first before proceed with the second one.
upgrading from snow leapord to mavericks, i couldn't opened app store, messenger, ibook,FaceTime, maps and other. please help
