Configuring preferences and options in Outlook.com
Hello LeoRomano00
Hi, I'm Karl, an independent advisor and will try to help you with this.
What your screenshot shows is a GMail account that was added as an <additional mailbox> using a Premium Outlook.com account.
Instead of clicking on the <Gear> (Settings) icon, click on the <Diamond> Premium settings icon and remove the Gmail account from there - as per the attached screenshot