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Help!!! Really slow boot times after clean install (factory Restore).

Discussion in 'MacBook Air' started by Alfieg, Feb 6, 2011.

  1. macrumors member

    Hi guys, hope you can help me here.

    I followed apple's own instructions for a clean install. I booted from the USB restore disk. First I ran Disk utility to erase the current volume. Then I just did a normal install.

    When I do this the macbook air takes around 1 minute to boot, with the loading circle animation rotating 16 times. Prior to restore it was 1.5 times.

    Now I have tried restoring the same way a few times since and it does the same thing. I have also left the system idle and restarted it multiple times to see if it will "bed in" but it stays just as bad!

    Does anyone on here know why this might be?

    Thanks in advance.
  2. Moderator


    Have you selected your drive as start up volume from System Preferences > Startup disk? You can also try SMC and PRAM resets.
  3. macrumors member

    Thanks for the tip. Can you tell me more about smc and pram? What do I need to do?

  4. Moderator


    SMC reset
    PRAM reset
  5. macrumors member

    Thanks. Any negatives associated with resetting PRAM and SMC?
  6. macrumors 6502a

    your clock might get reset until your wifi connects again (won't affect the wifi itself), and your brightness/audio settings might change from when you turned it off. benefits outweigh the costs by a huge amount if your computer is being slow and this fixes it.
  7. macrumors member

    Neither fixed it. Really cheesed off :(
  8. macrumors 6502a

    I suggest you just live with it for a couple of days. When I installed an SSD into my MBP, the boot time actually increased for a couple weeks. My apps still launched lightning fast, but the boot time just baffled me. After a while though, all of a sudden, my boot time cut by about 3 x. I'm guessing the system just does some maintenance work and eventually gets used to it. If you're still getting 1 min boot times after a month, take it to Apple as it might be a hardware issue. In the meantime, I'm sure waking from sleep is still fairly fast right? Why are you always shutting down the computer anyway?
  9. hfg
    macrumors 68030


    When you used Disk Utility to erase the drive, did you activate the "security erase - zero all date" option? That might have caused a slow down of the drive until the controller could do its clean-up routine.

  10. macrumors 65816

    suggest you go again, this time:

    * run hardware test first - hold down 'd' key as you start up from usb stick.

    * then restart holding down the 'c' key and select a more secure erase option in disk utility.

    something's definitely not as it should be. :(

    when you get around to the actual Mac OSX install, deselect everything you don't need in the 'customise' section

    let us know how you get on …
  11. MRU


    Go into system preferences.

    Click on Start Up

    Choose OSX and press the lock icon bottom left

  12. macrumors member

    Fixed it. You're not going to believe me but I opened photo booth then restarted. went from 1 minute to 10 seconds and seems to be staying that way!

    Riddle me that!!!!
  13. macrumors 68000


    We just came home with an 11" for my son. My wife has the identical one. Her's boots in 15 seconds. My sons boots in 40 seconds. No matter what we try we can't get it to boot faster. His old macbook is as fast with 5400 spin drive. Anyone have any ideas before we return it?
  14. macrumors 6502a


    Do a fresh install with a Secure erase. Regular Formats are bad for SSDs and can degrade performance.
  15. macrumors 68000


    I tried it and it seemed to work until I used Super Duper to copy over my stuff. Then back to where I was. Slow boot.
  16. macrumors 6502a


    Hmm. You should try a utility that wipes free space' but i do not know of any for mac :/
  17. macrumors 68000


    Spent 5 hours with the machine. Taking it back for refund
  18. macrumors 6502a

    If it slows down after you move your old data back on, more than likely some system file got messed up somewhere down the line. The easiest thing to do is simply wipe the drive, do a clean OS install, then manually reinstall the software from before and move the data back. Super duper or any cloning utility will easily just copy the bad system files back over, defeating the purpose of your wipe.
  19. hfg
    macrumors 68030


    The OS X standard "Disk Utility" can erase (zero out) free space.
  20. macrumors 65816

    This would be annoying for sure, but how often do you boot this thing? I only boot MAYBE once every 2-3 weeks.
  21. macrumors 6502a

    Stupid idea on an SSD. Zero-ing out a drive writes data to every block. To secure erase an SSD, you want to empty every block. Completely opposite effect.
  22. macrumors newbie

    SO............ How do you empty out the blocks on an SSD?
  23. hfg
    macrumors 68030


    Yes, I completely agree. However, the poster asked for a way to wipe the free space on his drive, and that is one way to do it. I think it has been suggested on the forums that eventually the ssd controller will empty that zeroed-out free space resulting in the desired effect. Too bad we don't have a "trim" command to do it instantly.
  24. macrumors 6502a

    You might as well just boot into linux using a USB and do a secure erase command. Shouldn't take much longer than a zero-ing out.
  25. hfg
    macrumors 68030


    Does that "empty" the cells?

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