How do I find out if my protection is for one computer or if I can add a second computer.

Hi Momofmany07
 
Welcome to the Community Forums.
 
You have the Antivirus version of WSA (I assume so as you are posting in this forum.  If that is the case then you either have a subscription for 1 or 3 devices.  If you do not have any reference such as the email that you wil have got if you purchased online or from the box that WSA came in if a retail purchase, then the quickest way to find out is to install WSA on the 2nd machine.
 
You can use the same installer as for the first or download a fresh copy from here (PC - Webroot version)/here (PC - Best Buy version) or here (Mac) 
 
Make sure that you have the keycode before you start the install, and once prompted to enteer it do so; if you have more devices available under the keycode the activation should be successful but if not then you will be informed by the installer, etc. and will not be able to install the full version of WSA on the machine.
 
You can then contact Webroot (or Best Buy if that is the version you currently have) witha view to adding more devices, etc.  They should be able to give you the details of what options you have if you wish to proceed on that basis.
 
Hope that helsp?
 
Regards, Baldrick