Removing Employees from Security Groups
If you have the necessary authorisation, you can remove an employee from a security group. When you remove an employee, he/she is no longer a member of the security group.
To remove employees from a security group:
Click the Setup tab, then click the Security Groups link. The Security Groups page opens, which lists all security groups defined for your company..
In the Security Group ID column, click the security group containing the employee whom you want to remove. The Security Group page opens.
Click the Employees tab. The Employees tab lists all employees who are currently members of the security group.
In the Delete column on the left side of the page, select the check box for each employee whom you want to remove from the security group.
Click the Submit button.