Samsung Q1B - Manual (Page 42)

Control Panel 42
Deleting a User Account
1
Select Start > Control Panel > User Accounts.
2
Click on user account to be deleted and click Delete Account.
You cannot delete a currently logged in user account.
Switching Users
1
Select Start > Log Off.
2
Click Switch User.
3
Click on user account to login to the Start screen.
Login with a new user account.