How To Open App On Mac Computer


Migration Assistant copies all of your files from your old Mac to your new Mac so that you don't have to copy them manually.

  • If your files are currently on a PC, follow the PC migration steps instead.
  • If you're moving content from a Time Machine backup, follow the steps to restore your Mac from a backup instead.

Get ready

  1. Install all available software updates on both computers. If your old Mac isn't using OS X Lion or later, and your new Mac isn't using OS X Mavericks or later, follow the Mountain Lion migration steps instead.
  2. If both computers are using macOS Sierra or later, place them near each other with Wi-Fi turned on. If either one is using OS X El Capitan or earlier, make sure that both are on the same network.
  3. On your old Mac, choose Apple menu  > System Preferences, then click Sharing. Make sure that a name appears in the Computer Name field.

Use Migration Assistant

How to open applications mac

You're now ready to use Migration Assistant to move your files from the old Mac to the new one.

On your new Mac

Delete the app preference file. Plist files can become corrupt when a Mac shuts down or restarts unexpectedly or when an app freezes or crashes. As a result, the app may not open. When you delete a bad preference file, the Mac creates a new plist file that contains all the app's defaults automatically. Preview is the default app for viewing images and PDF files on your Mac. So, any time you double-click on, or otherwise launch, one of those files, it'll open in Preview. If, for some reason, another app has taken over responsibility for a certain file type, and you want to give it back to Preview, you make the change right in the Finder. But first, you'll have to open the Terminal. Here's how: How to open the Terminal on a Mac. There are two primary avenues you can use to get to the Terminal: the Applications folder in your Finder.

  1. Open Migration Assistant, which is in the Utilities folder of your Applications folder. Then click Continue.
  2. When asked how you want to transfer your information, select the option to transfer from a Mac, Time Machine backup, or startup disk. Then click Continue.

How To Open Apps On Mac Computer

On your old Mac

  1. Open Migration Assistant, then click Continue.
  2. When asked how you want to transfer your information, select the option to transfer to another Mac. Then click Continue.

On your new Mac

How To Open App On Mac Computer

When asked to select a Mac, Time Machine backup, or other startup disk, select the other Mac. Then click Continue.

On your old Mac

If you see a security code, make sure that it's the same code shown on your new Mac. Then click Continue.

On your new Mac

  1. Select the information to transfer.
    In this example, John Appleseed is a macOS user account. If it has the same name as an account already on your new Mac, you're prompted to either rename the old account or replace the one on your new Mac. If you rename, the old account will appear as a separate user on your new Mac, with a separate home folder and login. If you replace, the old account will delete and then replace the account on your new Mac, including everything in its home folder.
  2. Click Continue to start the transfer. Large transfers might need several hours to complete.
  3. After Migration Assistant is done, log in to the migrated account on your new Mac to see its files.

Open Apple Apps On Pc

If you're not keeping your old Mac, learn what to do before you sell, give away, or trade in your old Mac.