We recently updated our Apple Operating System from 10.8 to 10.9  – nicknamed Mavericks – and generally, it went well.

But there is one crucial item that did not: all Microsoft Office 2011 applications started crashing. We were unable to open any Word, Excel or PowerPoint documents!

However, do not fret because we have an easy fix. Don’t panic!

This was via phone with a Microsoft Level 2 Tech Support agent – they are aware of this issue with Mavericks and will be releasing an update in the next month.

Login items

  1. Restart your Mac in Safe Mode (press shift key when the initial screen is blank, release it when you see the progress bar in grey Apple icon screen)
  2. Go to System Preferences/Users & Groups/Login Items (see above)
  3. Remove any items which have a warning triangle next to them (unlock if you see them greyed out) and are tagged as “Unknown”
  4. In Applications/Font Book, go to File/Restore Standard Fonts…
  5. After “Proceed”, you should get an all clear
  6. Try to open any Office application (still in Safe Mode) – they should be fine
  7. Restart and have a cup of tea
  8. 🙂

Hope this helps. And remember, don’t panic!

3 thoughts on “Microsoft Office Apps Crash with 10.9 Mavericks

  1. Hi, we have followed your steps above. Which was great for getting Excel and Word to work (thank you). However now we are having many system font issues on our brand new mac – as they have all disappeared Illustrator wouldn’t open until we placed Verdana back on the computer etc. Any ideas? Kind regards Rebecca

  2. Hi Rebecca,

    Glad it worked for you. Sorry you are still having problems.

    First, try rebuilding the permissions using Apple’s Disk Utility software. If that doesn’t work, try reinstalling Mavericks to get the system fonts back in. Also, try step 4 again.

    Let me know how you get on. Fingers crossed for you. 😉

    – Paul

  3. After upgrading to Mavericks, I created a secure folder and saved one MS Word (2008) document in it. It opened once. On the second opening, it caused Word to crash and it is now inop. Reinstalled Word, but it still does not work. Trashed secure folder, but Word is still inop.

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