Often times, corporate security policies prevent applications such as PowerPoint from loading add-ins. Running PowerPoint with elevated privileges will allow PowerPoint to correctly load Office Timeline.
Run PowerPoint with elevated privileges so that Office Timeline can load correctly when PowerPoint is started.
Close all open instances of PowerPoint.
In Windows, run the Troubleshoot compatibility wizard for PowerPoint. There are two ways you can do this:
i. Press and hold the Shift key on your keyboard and right-click on the PowerPoint icon in the Start bar and click Troubleshoot compatibility.
ii. In Windows, open File Explorer and browse to your Microsoft Office installation folder.
For Microsoft Office 2013, it's typical:
C:\Program Files (x86)\Microsoft Office\Office15
Depending on where you or your IT Admin installed Microsoft Office, your Microsoft Office installation folder could be different. For example:
C:\Program Files\Microsoft Office\Office15 or
C:\Program Files\Microsoft Office\Office15\root
For Microsoft Office 2010, it's typical:
C:\Program Files (x86)\Microsoft Office\Office14
For Microsoft Office 2007, it's typical:
C:\Program Files (x86)\Microsoft Office\Office13
You may have to explore a bit to find POWERPNT.EXE.
Right-click on POWERPNT.EXE and click 'Troubleshoot compatibility'.
Click Troubleshoot program.
Check "This program requires additional permissions" and click Next.
Click Test the program.
Check to see that Office Timeline is visible in PowerPoint and functional. You should see the OFFICE TIMELINE FREE or OFFICE TIMELINE+ tab inside Microsoft PowerPoint.
Click Next and then click "Yes, save these settings for this program".
Click Close to close the Wizard.
Open PowerPoint as you normally do and check to see if Office Timeline is enabled.
How to Undo Running PowerPoint with Elevated Privileges
You can undo running PowerPoint with elevated privileges the same way you enabled it. Re-run the Troubleshoot compatibility wizard and un-check The program requires additional permissions checkbox.