Yes, Contour Elite has been tested and is fully compatible with Windows 10.
Yes, you are allowed to install Contour Elite on more than one computer. Many people like to install it on their home computer and a laptop that they take with them on fishing trips.
Contour Elite lakes are sold as regional packages or smaller lake bundles. See our lake list page for more information.
We get our lakes directly from LakeMaster. You can request that LakeMaster add a lake by visiting this website: http://www.humminbird.com/Category/Company/Request-a-Lake/
Yes, you should be able to upgrade to Windows 10 without any problem. If you do encounter problems after upgrading, let us know and we can help you resolve the issue.