Having trouble watching tutorials. i click on link and get Browse InDesign CC tutorials This connection is Untrusted. Then can not reach tutorial.

Try using a different web browser.

If the URL address you enter starts with https rather than http and the site doesn't have an security certificate you might get the untrusted screen you are showing. For example https://www.domainwithoutssl.com/, so either delete the s or https://. If the page exists it would be http://www.domainwithoutssl.com or www.domainwithoutssl.com or even domainwithoutssl.com and you won't get blocked by the untrusted screen:

with http