4 Replies Latest reply: Jan 1, 2013 11:19 PM by mende1
sully241 Level 1 (0 points)

My Onboard / default  Quicktime player stopped working a week or so after purchase of my MacBook Pro. Tells me that it may have been corrupted or files missing. How do I repair / replace?



MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)
  • mende1 Level 10 (92,236 points)

    Welcome to the Apple Support Communities


    Reinstall OS X. Press Command and R keys while your Mac is starting and reinstall OS X

  • Kappy Level 10 (266,058 points)

    Reinstalling Lion/Mountain Lion Without Erasing the Drive


    Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.


    Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.


    When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.


    Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.


    Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

  • sully241 Level 1 (0 points)

    Thanks! I had to research further before doing the re-install. You failed to mention that I would NOT loose my settings, second Platform etc.etc. However, you should be credited with points for getting me thinking in the correct direction. Thanks, and Happy New Year.


  • mende1 Level 10 (92,236 points)

    You are welcome