Problem:

Office sets OneDrive as the default location during its installation.  This default location causes trouble for users who prefer to save to their local or network directories.  Word or Excel may prompt users for multiple authentication requests before they can save locally.

Solution:

Change the default save location.

1. Open any Microsoft Office 2016 program.
2. Click on the File menu item.
3. Click on Options.
4.  Click on the Save tab located on the left menu.
5. Toggle the check box field that reads “Save to computer by default”.  Click OK.

Office Outlook 2013 Windows Server