[Logon As Service] Privilege
When you want to add the [Logon As Service] privilege to an existing Windows account so that you may be able to configure network drive settings, perform the following steps before configuring the [logon settings].
1. Click [Control Panel], [Performance and Maintenance], [Administration Tool], and [Local Security Policy] from the Windows' [Start] menu.
The [Local Security Policy] dialog appears.
2. Select [Local Policy] and [User Rights Assignment] from the tree to the left.
3. Double-click [Logon as Service] from the list to the right.
The [Log on as a service Properties] dialog appears.

4. Click [Add User or Group].
The [Select Users or Groups] dialog appears.

5. Enter the Windows account name in the [Enter the object names to select] field.
Enter or change the object name, location, and detail settings as required.
Be sure to enter a Windows account with Administrator privileges.

6. Click [OK].
The [Log on as a service Properties] dialog reappears.
7. Click [OK].
The [Local Security Settings] dialog reappears.
8. Close the [Local Security Settings] dialog.