How long takes migration with Time machine thrugh USB?

Discussion in 'iMac' started by asorta, Nov 3, 2014.

  1. asorta macrumors newbie

    Oct 23, 2008
    I'm going to migrate old system on Time Machine with USB into new iMac retina. 2 questions: How long it might take to transfer 650GB, should I do it during installation or wait till later and do simple migration into new system?
  2. apfelmann macrumors 6502

    Jul 23, 2007
    I'll do it right when prompted during first start up.
    If it's usb 3.0 it's fast... Maybe 2 hours or less
  3. eduardrw macrumors 6502

    May 20, 2013
    If the disk is USB 2 it will take a whole night.
    I usually do it at installation and let the computer do its thing over night.
  4. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    Be sure at do it during the system setup. If you create an account then try to run Migration Assistant later to import to the same account you will have a mess.
  5. asorta thread starter macrumors newbie

    Oct 23, 2008

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