We are having issues with new users not being able to logon to the Citrix servers (Win2008R2) untill Access Protection is desabled. As soon as it is disabled, the user can log in. The following error appears: "The User Profile Service failed to logon. User profile cannot be loaded." Administrator credentials work fine however. The only products installed on these servers are MA 4.6 and VSE 8.8 Patch 2.
The solution you need is a fix from Mc'fee...
User Session IDs are not recycled and CSRSS.exe sessions are not closed
Under AntiVirus Maximum Protection this is the rule that was preventing User Logins "Protect cached files from password and email address stealers".