Close all office programs (outlook, word, excel, powerpoint).
Command Prompt should be selected
Click Run as Administrator
Copy and paste this command:
“C:\Program Files\Common Files\microsoft shared\ClickToRun\officec2rclient.exe” /update user updatetoversion=16.0.13901.20462
Wait for office to install previous version.
When you see the Updates were installed screen you are good to go