How to update avg free virus definitions

I've used and loved AVG Free for years!  It doesn't interfere with any of my other programs!

However, this week, it suddenly disappeared.  I downloaded it from the site.  And cannot figure out how to update the virus definitions. 

In the program before, there was a box to check and I found virus definitions seemed to need to be updated at least once a day.

Now, all I can get is the screen to purchase the full program.

Help!

Thanks Much!

Hello Nancy,
We are sorry for the inconvenience caused.
We suggest you to follow the below steps to update the virus definitions in AVG.
You can go to http://www.avg.com/update
Select the update files you need (typically Virus definitions and All necessary modules for your operating system) and download them to a portable media, e.g. a USB flashdisk.
Open your AVG program and then in the menu Options, click Update from directory.
Navigate to the folder where you stored the update files, and click OK.
Please feel free to get back to us if you face any issues still.
Thank you.

Hello Nancy,
AVG updates will get installed automatically when you are online.
If you would like to update any specific update, you can follow the instructions in the link we have given.
Thank you.