Do not prompt for client certificate selection when no certificates or only one certificate exists.

This policy setting allows you to manage whether users are prompted to select a certificate when no certificate or only one certificate exists.If you enable this policy setting Internet Explorer does not prompt users with a "Client Authentication" message when they connect to a Web site that has no certificate or only one certificate.If you disable this policy setting Internet Explorer prompts users with a "Client Authentication" message when they connect to a Web site that has no certificate or only one certificate.If you do not configure this policy setting Internet Explorer prompts users with a Client Authentication message when they connect to a Web site that has no certificate or only one certificate.

Policy path: 

Windows Components\Internet Explorer\Internet Control Panel\Security Page\Locked-Down Intranet Zone

Scope: 

User

Supported on: 

At least Internet Explorer 6.0 in Windows XP with Service Pack 2 or Windows Server 2003 with Service Pack 1

Registry settings: 

HKCU\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Lockdown_Zones\1!1A04

Filename: 

inetres.admx

Related content