It is, but considering the problems a client is having (the online repair apparently installed office as a Store app and it moved the ost files into C:\Users\drcp\AppData\Local\Packages\*, you might want to uninstall then reinstall yourself.
Or you can try repair and see if it does the same thing to your system. The client had problems sending mail and i discovered the configuration when i tried to figure out why it wasn't working.