Applies To: Windows Server 2003, Windows Vista, Windows XP, Windows Server 2008, Windows 7, Windows Server 2003 R2, Windows Server 2008 R2, Windows Server 2012 R2, Windows Server 2012, Windows 8 This troubleshooting topic explains the interaction between the required synchronous processing for certain Group Policy client-side extensions (CSEs) and Fast Logon Optimization, which was introduced in W