You can easily uninstall our Word add-in if you no longer need it or to force an upgrade.  You can see all your installed add-ins as follows:

• Click the Home tab in the ribbon (might be another tab for older Word)
• Click the "Add-ins" button
• Click "More add-ins" to open up a dialogue window
• Click "My add-ins" in the top, right of the dialogue window

You can then uninstall any add-in by clicking the "..." in the top right corner of the add-in (see below) and selecting Remove.