6 Replies Latest reply: Apr 23, 2014 10:07 AM by benwiggy
BGmail Level 1 (55 points)

After reading posts on internet and here I am confused on how to reinstall Mavericks without losing all my data.


My problem stems from problem where my Mac will not shut down properly.  The screen goes and will not shutdown.  I have to use power button to shut it down.  I have done troubleshooting and cannot find the source of the problem so I am stumped.


Your help on reinstalling without losing data would be appreciated.

iMac (27-inch Mid 2010), OS X Mavericks (10.9)
  • macjack Level 9 (51,622 points)

    Boot up holding command-r keys into your Recovery Volume.

    First run Disk Utility > Repair Disk, if you get errors run until no errors reported or reports "the disk cannot be fixed". Then, choose Reinstall OS X. This will be an install "in place" and shouldn't effect any of your own data or settings.


    That said you should always have a good backup, anything can happen at any time, not just during installing.


    Also, before you re-install have you tried shutting down from your Guest account? It may be a problem in your Home folder in which case re-installing won't help. It also may be some third process.

  • BGmail Level 1 (55 points)

    Thanks for the reply.


    I have checked my 3rd party apps seeing which one it could be.  However hard to pinpoint.  I have tried Console logs but unable to see anything in the log that shows which app it might be.


    Tried safe mode but no change when restarting/shutdown.  When I do restart the computer it displays what it is doing in verbose mode.  It never did that before.


    I have a good time capsule backup too.  Should I do full restore from an earlier date?


    Thanks and I look forward to yur reply.

  • macjack Level 9 (51,622 points)

    The only way to properly test would be to do a clean install, which is a PITA.

    Have you run AHT (Apple Hardware Test)?


    If hardware passes all test (i'd run at lesat 10 loops and you'll want to do that ovenight) you could try a Time Machine full restore from a previous date. Or, a clean install with selective migration from TM.


    EDIT: Have you run EtreCheck a simple diagnostic utility that might turn up something?


  • Linc Davis Level 10 (192,377 points)

    If you have more than one user account, these instructions must be carried out as an administrator.

    Launch the Console application in any of the following ways:

    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

    ☞ In the Finder, select Go Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

    ☞ Open LaunchPad. Click Utilities, then Console in the icon grid.

    Step 1

    Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select

    View Show Log List

    from the menu bar.


    Enter "BOOT_TIME" (without the quotes) in the search box. Note the timestamps of those log messages, which refer to the times when the system was booted. Now clear the search box and scroll back in the log to the last boot time after  you had the problem. Select the messages logged before the boot, while the system was unresponsive or was failing to shut down. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message (command-V). Please include the BOOT_TIME message at the end of the log extract.

    If there are runs of repeated messages, post only one example of each. Don’t post many repetitions of the same message.

    When posting a log extract, be selective. In most cases, a few dozen lines are more than enough.

    Please do not indiscriminately dump thousands of lines from the log into this discussion.

    Important: Some private information, such as your name, may appear in the log. Anonymize before posting.

    Step 2

    Still in Console, look under System Diagnostic Reports for crash or panic logs, and post the entire contents of the most recent one, if any. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if present (it may not be.) Please don’t post any other kind of report — it will be very long and not helpful.

  • Stu593 Level 1 (0 points)

    Thanks!. This is exactly the information that I was looking for.

  • benwiggy Level 4 (1,245 points)

    BGmail wrote:


    After reading posts on internet and here I am confused on how to reinstall Mavericks without losing all my data.

    Even if you did lose all your data, it wouldn't matter, because you've got a backup. Haven't you?