First, you need to open Word, Excel, or PowerPoint and click on the Options visible in the bottom-left corner. Then, switch to the Trust Center tab and click on the Trust Center Settings button.

Go to the Trust Center as has been prescribed in the solution above and open the Trust Center Settings. From the options pane to your left, click on Trusted Locations. Here, select Add a new location.

One of the most notable additions to Microsoft's 2007 Office System was the Trust Center, which centralizes the security options in Word, Excel, Outlook, PowerPoint, and the other applications in ...