Follow this guide if your site was created without the help of the form provided by ITS. Follow the Add others to a SharePoint Site if the form provided by ITS was used to create your site.
This article covers how site owners can remove, others from a SharePoint site.
Navigate to s.uconn.edu/sharepoint.
Click on your site, then click on [#] members in the top right.
Find the member you would like to remove and click the dropdown arrow next to their membership status (this will say Owner or Member).
Click Remove From Group.
