Reinstall

Discussion in 'MacBook Air' started by Jahvision, Feb 10, 2017.

  1. Jahvision macrumors newbie

    Jahvision

    Joined:
    Nov 4, 2016
    Location:
    Jahville
    #1
    When I bought my MacBook Air it was Leopard upgraded to El captain now I have Mac OS Sierra 10.12.3. I would like to reinstall Mac OS Sierra do I have to go back or just reinstall Mac OS Sierra Thank you
     
  2. Bart Kela macrumors 6502a

    Bart Kela

    Joined:
    Oct 12, 2016
    Location:
    No Service
    #2
    Just reinstall Sierra. It is prudent to make a backup before. Good luck.
     
  3. Jedi macrumors regular

    Jedi

    Joined:
    Apr 28, 2008
    #3
    Hi ,

    Hold the "Command" + "R" ( lower case is fine ).

    This should bring you to a screen where you can choose from backup install time machine and a couple of other options.

    If your speed is fast , it will take more time to install than download , if you have average broadband speed ( 50~75) it could take about an hour.

    BUT , what I would do is:

    Use the disk utility and re-format you HDD or SSD ( journaled ) that way you are not writing on top of an op-sys.

    Because you are doing it this way you will have a clean slate plus you WILL get back your recovery partition. ( I think that is one of the options , don`t use it you will always get it , there was a time when you did NOT , but now you do.

    If you don`t have a time machine backup , then take your whole "home-folder" , the folder that looks like a house and put it on a cloud or flash drive .

    Once you have the new op-sys installed you will go through the setup again , IF you have used Apple`s Cloud service sign-in and then sign in with your Apple ID.

    Once you get to the main page you might even find some of your old stuff waiting for you , because you singed in.

    IF you want a blank canvas to build from and know about account and permissions then don`t click or sing into the cloud and don`t sign in with your Apple ID , you will still get to the main page only it will be all generic , as if Apple never heard about you !!

    A lot of trail and error , ONE LAST IMPORTANT FACT !~!!

    Your iLife Apps ??????

    Make sure they are in your apps list in the App Store , if not copy the images from your applications folder to a flash drive , or else they might be gone for good unless you have 3 yr Apple Care or your computer is less than 90 days old.

    Don`t worry about preferences , unless to backed up , you will be in for a long rebuild , if you have time machine do a migration ( selective ) , that way you are not dumping the bad with the good onto a fresh system folder.

    Any problems , PM me . good luck , with me luck too , I have to go through the same thing with my new Mac Mini , I can`t load Adobe Reader DC ( the free reader . not the paid Acrobat ).

    Later ,

    Gary. 
     
  4. Macgyver1 macrumors member

    Macgyver1

    Joined:
    Oct 18, 2016
    #4
    It's people like you that make a difference! Always be yourself, unless your a Jedi.

    Cheers...(I gotta stop drinkin' so much).
     
  5. Jahvision thread starter macrumors newbie

    Jahvision

    Joined:
    Nov 4, 2016
    Location:
    Jahville
    #5
    Thank you ,That is very helpful.
     
  6. Jedi macrumors regular

    Jedi

    Joined:
    Apr 28, 2008
    #6
    Hi ,

    You are very welcome , happy to help !! :)

    Good luck , take care ,

    Gary. 
     

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