6 Replies Latest reply: Dec 6, 2012 1:46 PM by Kappy
darkknite Level 1 (0 points)

Can anyone please help me. How do I get my Mac back to its speed when it had snow leopard? I had Snow Leopard, I didn't upgrade to Lion. I went straight from SL to ML. I have a MacBook Pro its mid 2010. 2.4GHz core 2 duo and 4GB ram. I have lots of music and podcasts on my mac and few films and pictures. together these amont for 98GB. Does this affect speed? Its very sluggish with ML. SL was smooth and fluent. ML has made my mac into a slow and sluggish machine. Its not the same as when I had SL.

MacBook Pro, OS X Mountain Lion (10.8.2)
  • Allan Eckert Level 9 (50,731 points)

    How much free space do you have on your system disk?



  • mende1 Level 10 (92,231 points)
  • darkknite Level 1 (0 points)

    I have 70GB free. Originally came with 250GB

  • darkknite Level 1 (0 points)

    I have 70GB free originally came with 250GB

  • Linc Davis Level 10 (192,882 points)

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


    One possible cause of a slow user interface is a large number 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.


    Otherwise, take these steps when you notice the problem.


    Step 1


    Launch the Activity Monitor 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 Activity Monitor in the icon grid.


    Select the CPU tab of the Activity Monitor window.


    Select All Processes from the menu in the toolbar, if not already selected.


    Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for % User, % System, and % Idle at the bottom of the window.


    Select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?


    Next, select the Disk Activity tab. Post the approximate values shown for Reads in/sec and Writes out/sec (not Reads in and Writes out.)


    Step 2


    You must be logged in as an administrator to carry out this step.


    Launch the Console application in the same way as above. 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.


    Post the 50 or so most recent messages in the log — the text, please, not a screenshot.


    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 a message.

    Important: Some personal information, such as your name, may appear in the log. Edit it out before posting.

  • Kappy Level 10 (266,058 points)

    Might I suggest you give this a try as a start:


    Repair the Hard Drive and Permissions - Lion/Mountain Lion


    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.




    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 then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu. Select Restart from the Apple menu.


    Next, after you select Restart follow the instructions for booting into Safe Mode after which restart normally.