No access to allowed applications managed by AppLocker

This new update fixes the issue where you manage software restriction policies by applying AppLocker rules from a Group Policy Setting (GPO). In this scenario, you cannot access allowed applications because the synchronization mechanism between Group Policy and AppLocker is broken.

Article ID: 2568041 - Last Review: August 10, 2011 - Revision: 1.0

You cannot access allowed applications that are managed by AppLocker in Windows 7 or in Windows Server 2008 R2

Source: http://support.microsoft.com/kb/2568041/en-us?sd=rss&spid=14134