Windows 10 - update to version 14 (from 12) fails

HarryLR

Tried to update a remote laptop, as instructed, from version 12 to version 14 on a Windows 10 Dell Latitude.  The update process seemed to execute OK, and restarted the software fine.  However, "check for update" always showed verions 12 active, and again prompted to udpate to version 14.  I made 4 attemtps, and TeamViewer still shows version 12.

Where can I look for either log information or guidance as to why the udpate doesn't take?

Thank you.
Harry