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HT1338: OS X: Updating OS X and Mac App Store apps

Learn about OS X: Updating OS X and Mac App Store apps

HT1338 My mac book pro appears to be running slightly slower than normal and has frozen 4 times this week, is there a way to run a system check?

649 Views 9 Replies Latest reply: Apr 2, 2013 7:14 AM by Linc Davis RSS
matelot77 Calculating status...
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Mar 28, 2013 12:16 PM

Is there a way to run a system check on my mac book pro?

MacBook Pro, OS X Mountain Lion (10.8)
  • sig Level 8 Level 8 (35,770 points)

    Boot to the Mountain Lion Recovery Disk and run Repair Disk from Disk Utility.

  • Linc Davis Level 10 Level 10 (107,445 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 when 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 (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 shutdownStall, spin, or hang logs — they're very long and not helpful.

  • Linc Davis Level 10 Level 10 (107,445 points)

    You may have a logic board fault, though I'm not certain.


    Back up all data.


    Boot into Recovery by holding down the key combination command-R at the startup chime. Release the keys when you see a gray screen with a spinning dial.


    Note: You need an always-on Ethernet or Wi-Fi connection to the Internet to use Recovery. It won’t work with USB or PPPoE modems, or with proxy servers, or with networks that require a certificate for authentication.


    When the OS X Utilities screen appears, follow the prompts to reinstall the OS. You don't need to erase the boot volume, and you won't need your backup unless something goes wrong. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade, so make a note of those before you begin.


    If there's no improvement, make a "Genius" appointment at an Apple Store.

    Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.

    Keeping your confidential data secure during hardware repair

    *An SSD doesn't need to be zeroed.

  • petermac87 Level 5 Level 5 (4,065 points)

    matelot77 wrote:



        Many thanks for your help, it appears to have worked but I'll keep an eye out for any problems. Do you know if there is any way to check for viruses? As I seem to be getting a lot of junk pop ups when I'm online?



    Turn on Block Popup Windows in Security Tab of Safari Preferences.



  • thomas_r. Level 7 Level 7 (26,930 points)

    Do you know if there is any way to check for viruses? As I seem to be getting a lot of junk pop ups when I'm online?


    That's not likely to be caused by any kind of malware on your machine. You could have a bit of adware installed, but that sort of thing is not usually true malware. See:


    Eliminating browser redirects and advertisements

  • LexSchellings Level 5 Level 5 (5,485 points)

    Clinton poited to a very practical little tools that gives a lot of info about what is loaded, called Etrecheck, download that and copy the output here.

  • Linc Davis Level 10 Level 10 (107,445 points)

    From the Safari menu bar, select


    Safari Preferences Extensions


    If any extensions are installed, disable them and test.


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