Bio-Rad Image Lab™ Software - Manual (Page 51)

Setting Up Image Lab Security Edition
User Guide | 51
 Select the Use local groups for establishing user security levels checkbox.
3. To set preferences so that only local users can run Image Lab:
 In the Domain used in authentication field, enter your local computer name.
See To find the name of your local domain on page 185 for instructions on
how to determine this name.
Note: The default domain name that will appear in this field is the
domain on which the current user is logged in.
 The Use local groups for establishing user security levels checkbox is
grayed out (not accessible).