Troubleshooting the Mac App Store

While using the Mac App Store on your Mac, you may encounter issues which you can troubleshoot and resolve yourself, or which have simple workarounds. 

Consider the following symptoms and possible resolutions.

If an app purchased on one Mac does not open after being copied to another Mac

On the other Mac (where the app was copied, not purchased):

  1. Delete the app that will not open.
  2. Open the Mac App Store.
  3. Ensure that you are logged in to the Mac App Store with the same account that purchased the app.
  4. Select the Purchases view from the top of the Mac App Store window.
  5. Find the app and click the Install button beside it.
  6. The app will be installed on the Mac you are using.


If you are unable to find an app you purchased from the App Store

Apps you purchase from App Store have an icon added to your Dock and are installed in the Applications folder. To locate them:

  1. Open the Finder.
  2. Choose Applications from the Go menu.
  3. Locate your app in the Applications folder.


If the Mac App Store application was removed after installing the Mac OS X v10.6.6 Combo Software Update

First, confirm that you haven't simply removed the App Store icon from your Dock:

  1. Open the Finder.
  2. Choose Applications from the Go menu.
  3. Locate App Store in the Applications folder.

If you cannot find the app, confirm that it isn't in your Trash by clicking on the Trash icon on your Dock and looking for App Store in the Trash contents. If it is listed in the Trash contents, follow the steps in this article under Step 1, "If you change your mind..." to return the App Store to your Applications folder.

If the Mac App Store has been fully removed from your computer, visit AppleCare Support Downloads to download the Mac OS X v10.6.6 Combo Software Update package. Double click the file that downloads to run the Software Update. The Mac App Store will be replaced in the Applications folder and in your Dock.


If nothing happens after clicking Buy when purchasing an app

Select the Purchases view at the top of the Mac App Store window. Look for your purchased app. If it is listed under Purchases and says Installed next to it, check your Dock or Applications folder for the app. If the app's listing under Purchases says Install next to it, click the Install button. The app will then be downloaded and installed into the Applications folder. You will not be charged again for the app.

If the app is not listed under Purchases, your previous attempt to buy was not completed and you were not charged for the app. Navigate to where you tried to purchase the app earlier and click the Buy button for the app. This will charge your account for the app. If you delete the app and wish to to reinstall it later, you can use the Purchases view to reinstall it without being charged again.


If downloading an app is interrupted

Once an Internet connection is reestablished, your purchased downloads should automatically restart. The Mac App Store may alert you that there was an issue with the download and ask if you'd like to restart the download(s). Confirming will restart all pending downloads.

The download time will vary according to the file's size and your Internet connection speed. Refer to this article about iTunes Store purchases for more information about download times for large files.

Learn more

  • You can find additional information by choosing Help > App Store Help from within the application.
  • Additional articles and support resources for the Mac App Store are available here.
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