Fix duplicated opened credential dialogs issue after installing KB2574819 and KB2592687 on a Windows 7
After Installing KB2574819 and KB2592687 on a Windows 7, if user clicks Connect button of any computer on remote web access site, the credential dialog is opened without user name. After user inputs correct credential and clicks ok, another credential dialog is opened and requires user to input the credential again.
The two KBs are to enable RDP8.0 in Windows 7 which change the default settings of RDP configuration.
All clients which install KB2574819 and KB2592687 and using RDP feature of Windows Small Business Server 2011 Essentials, Windows Storage Server 2008 R2 Essentials and Windows Server 2012 Essentials.

On server side, we support to change the default RDP configuration by adding a registry key. Please follow the following steps to add it.


1.    Run Regedit to open Registry Editor

2.      Browse to [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Server\RDP\Customization].

3.      Create a new String value with name “promptcredentialonce” and set its value to 1