Error 0x80000008 when you try to activate Office for Mac 2011 or Office 365 on a Mac

Turn off the Two-Step Verification

1. Go to and Sign in using the Microsoft Account and Password that is associated with an active Office 365 Subscription.

2. After the sign in page, the next page will direct to a page where you can manage the account:

(see screenshot below)


3. Click Change password.


4. Then on the Change password page, just click CANCEL.


5. On the next page, Look for the TWO STEP VERIFICATION option and if you see an option to TURN OFF Two Step Verification, click it.


6.  After doing so, go back to your application and try to activate again. That should activate office.

***however if the two step verification is not enabled on your account, follow the below steps to fix the issue.


7.  Remove the license file

  1. On the Go menu, click Computer
  2. Double-click your hard disk icon. The default name will be Macintosh HD.
  3. Open Library, and then open Preferences.
  4. Drag to the Trash.

To remove subscription files, follow these steps:

  1. On the Go menu, click Home.
  2. Open Library.
    Note The Library folder is hidden in Mac OS X 10.7 and later. To display this folder, hold down the OPTION key while you click the Go menu.
  3. Open Preferences and then open ByHost.
  4. Arrange files and folders in alphabetical order.
  5. Drag all files that begin with "" to the Trash.

IMPORTANT Please restart your computer after following the above steps to remove in-memory caches.

After you have rebooted the Apple computer, completely empty the trash.


If this will still not work, completely remove Office for Mac 2011 by following the steps indicated on this website:

Then download and install office back on your computer.



Discussion Info

Last updated February 1, 2019 Views 2,620 Applies to:

Just so you know I keep a a Website I devote to Office2011/365 issues and I've added a Link to this discussion to help the many Office Mac users that have this issues and I bring it up each time I run across anyone with such issues. Where I have links I make no representation that its original material from myself. When a person clicks a link it actually goes to exact page. There are other sections on the Web site which are original material from myself, but they have Nothing to do with Office Mac Sections.  If you want to visit the site for look see click here

It seems that Mac Users are having an inordinate amount of issues with Two-Factor Authentication. It should not be. It should just be just a smooth on Mac as PC. 



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Phillip M. Jones, C.E.T.
I tried those steps and it didn't help. After I reinstalled I don't have Microsoft files in either location.