Office 2013 keeps asking for updates

Hi guys,

Looked around but can't seem to find anything for this. Have a user on office 2013. Win7. Any time he opens up any office application he has a message saying the software needs updating. If we click OK, we get the message saying we are all up to date. If we close the application down and open it again, or another office app, the update message is back!

Any way to get rid of this?

Thanks