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Reinstall OS 10.7.5 to resolve sluggish response and the system, in general, sometimes not responding correctly?

830 Views 12 Replies Latest reply: Jan 28, 2013 5:23 PM by floppy biscuit RSS
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Jan 26, 2013 5:28 PM

I performed a Time Machine back up after new HD install. Running a late 2009 iMac. Some odd issues are still occurring such as pixilating on the log in screen, dock not responsive, slow functioning...

iMac, Mac OS X (10.7.5), Late 2009 iMac
  • BDAqua Level 10 Level 10 (114,685 points)

    Hello, see how many of these you can answer...


    See if the Disk is issuing any S.M.A.R.T errors in Disk Utility...




    Open Activity Monitor in Applications>Utilities, select All Processes & sort on CPU%, any indications there?


    How much RAM & free space do you have also, click on the Memory & Disk Usage Tabs.


    Open Console in Utilities & see if there are any clues or repeating messages when this happens.


    In the Memory tab of Activity Monitor, are there a lot of Pageouts?


    One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...


    PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive


    Reboot, test again.


    If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.


    Check the System Preferences>Other Row, for 3rd party Pref Panes.


    Also look in these if they exist, some are invisible...







  • BDAqua Level 10 Level 10 (114,685 points)

    /System/Library/LaunchDaemons 222 items in this folder

    What non Apple ones are there?


    Second time I've seen that iTunesHelper problem, might highlight it & click the tiny minus icon to remove it, then reboot.

  • Linc Davis Level 10 Level 10 (107,520 points)

    First, back up all data immediately, as your boot drive might be failing.


    A common cause of a slow user interface is a large set of image or video files on the Desktop with preview icons. If you have more than a dozen or so such files, move them to another folder.


    Another possible cause is iCloud activity, especially Photo Stream synchronization. If applicable, uncheck all boxes in the iCloud preference pane and see whether there's an improvement.


    Otherwise do as below when you notice the slowdown.


    If you have more than one user account, you must be logged in as an administrator to carry out this step.


    Launch the Console application in the same way you launched Activity Monitor. 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.


    Select the 50 or so most recent entries in the log. Copy them (command-C) to the Clipboard. Paste (command-V) into a reply to this message. You're looking for entries at the end of the log, not at the beginning.


    When posting a log extract, be selective. Don't post more than is requested.

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

    Important: Some personal information, such as your name, may appear in the log. Anonymize before posting. That should be easy to do if your extract is not too long.

  • Linc Davis Level 10 Level 10 (107,520 points)

    Uninstall "Virex" according to the developer's instructions. Never install that again. Also, reinstall the Brother printing software. Turn off the built-in firewall, which you don't need. Reboot and test.


    If there's no improvement, uninstall "Logitech Control Center." Reboot and test again.

  • Linc Davis Level 10 Level 10 (107,520 points)

    You say booted in safe mode, but it's not clear what happened. Safe mode is normally slow, but it may not be as slow as what you have when booted as usual.

  • Linc Davis Level 10 Level 10 (107,520 points)

    Reset the System Management Controller (SMC)


    If there's no change, make a "Genius" appointment at an Apple Store to have the machine tested.

    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.


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