Hello, Nancy -
I went to the Trio home page:
I clicked on the Support link near the upper right of the home page.
Then, I clicked on the Manuals link on the Support page.
On that page,
I scrolled down to the bottom of the page to the link for Windows Tablets; Pro-Book 10.1 and clicked on it.
It seems the whole process goes round without ending up on a page to find and download the manual.
Therefore, I recommend you visit the Trio Tablets Support web page where you can send a message asking how to obtain the user manual for your Trio Pro-Book 10.1. This is the link: