Running the combo updater overwrites potentially problem-causing files.
If running the Apple combo updater and installing (then updating) Microsoft Office after using “Remove Office“, does not work, then the user should do an Archive & Install of the OS.
Caution: Before any update, users should backup everything. Creating a new User is often useful to troubleshoot problems because you can eliminate corruption and conflicts that might reside in your Home folder. Switch User: You can switch Users using Fast User Switching or you can Log Out of your User’s folder then Log into a new User for testing. Select “Create a new identity”, then “Set as Default”.
When booting into safe boot mode it forces your computer to run various maintenance tasks.
These are some of the items disabled on safe boot: It’s not always a Microsoft preference that is causing the problem.
The Combo updates contain all incremental updates and will update files that could have become corrupted.