There are a few ways to remove a user from a root group on a computer. One way is to use the command prompt. Another way is to use the Group Policy Editor. The Group Policy Editor is a program that you can use to create and manage group policies on your computer. To remove a user from the root group, you first need to open the Group Policy Editor. To do this, open the Start menu and type gpedit.msc. Then, click on the Edit button. In the Edit Group Policy window, you will see two tabs: The General tab and The Users tab. On the General tab, you will see three fields: User name, Password, and Domain name. In addition, there are four buttons: Remove users from this group, Add users to this group, Edit groups memberships, and Delete groups memberships. The Remove users from this group button will remove all of the users in the given domain name from the root group. The Add users to this group button will add all of the users in the given user name to the root group. The Edit groups memberships button will edit all of the memberships for all of the users in both of these tabs in one go. The Delete groups memberships button will delete all of these memberships for all of these users in one go.