How can I delete the Outlook account showing in my Mail?

[Windows Central Question]

I just bought a new laptop with Windows 10 installed. Lots of things for me to learn/adjust to. When setting up my mail "app" (I think it's the app.....when I click on the envelope icon), I added my Gmail account and that's working fine as my email account. However in the settings it still shows an Outlook account. I don't have Outlook (I don't think) and i don't want to use it. However I can't figure out how to delete/remove this account. I called the 800 number for support and was told that since I am using a free product that they cannot help me with this. Any ideas???