Migration Assistant created multiple users. After receiving my new MacBook Pro and seeing that Migration Assistant would take 40 hrs to transfer my data from my PC, I decided to do it incrementally - now my info is under 3 different users. Ideas?

Question

First time Mac User.  Just got my MacBook Pro 2 days ago.  Uppon setup, I founf that Migration Assistant would take more than 40 hours to transfer my data from my PC.  Thinking that I was taking a smart approach, I decided to break the transfer into smaller parts performing them when the PC was not needed.  What I've ended up doing was migrating my data into 3 diferent user's on the Mac.  So now I have an extensive iTunes library and contacts under one user, all of "my documents" under another user, and all of my pictures under a 3rd user.  Anyone know how to get all my data over to one user and then get rid of the other user names?

Answer 1

Erase the drive, reinstall Mountain Lion, migrate using Setup Assistant.
Install or Reinstall Lion/Mountain Lion from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
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.
Erase the hard drive:
  1. Select Disk Utility from the main menu and click on the Continue button.
  2. After DU loads select your startup volume (usually Macintosh HD) from the
      left side list. Click on the Erase tab in the DU main window.
  3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on
        the Security button and set the Zero Data option to one-pass. Click on
      the Erase button and wait until the process has completed.
  4. Quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion/Mountain Lion and click on the Install button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.
To restore wait until the installation is completed and the computer restarts. You should restart to the Setup Assistant where you'll be given an opportunity to restore directly from your Time Machine backup. Be patient since the restore will take so long. If your backup drive can run on FireWire instead of USB then use FireWire instead. It will cut that time down substantially.