When you’re setting up a Windows Vista system on your network for the first time, you might find that adding printers becomes an issue because the UAC prompt appears.
Unfortunately, if you do this with a logon script – then the logon will hang until the script timeout expires. Worse still, if you’re using Group Policy Preferences to set up the printer it will cause the logon to hang indefinitely.
If you’re experiencing this problem – then you need to make sure that the Trusted Printer settings are either configured correctly, or disabled so that printer installation behaves as it would in previous versions of Windows such as 2000 and XP.
Firstly, you’ll need to open the Group Policy Management console, and navigate to the OU which contains the user accounts that are likely to add printers and edit the policy.
Open User Settings >Administrative Templates > Control Panel > Printers.
To prevent Vista from ever prompting to install the printer drivers, simply disable the Point and Print Restrictions setting. If you need to control where printers can be installed from then you need to edit the Approved Servers setting instead.
If you’ve used group policy preferences, make sure that you’ve set the Run in logged-on user’s security context option.
Once configured, you should be able to log on with a user account that automatically adds the printer without a hitch.