Hi,
Go through the attached screenshot to compare SEPM and SEP client serial number.
Screenshot is taken from SEPM 11.x version.
As everyone stated in SEP 11.x, ADC policy is not applicable on 64bit opearating systems.
Application and Device Control policies in Symantec Endpoint Protection 11.0 are not applied to 64 bit clients
http://www.symantec.com/docs/TECH102267
Tamper Protection does not install on a 64-bit Operating System.
http://www.symantec.com/business/support/index?page=content&id=TECH105052
About Endpoint Protection support for Windows 7 and Windows Server 2008 R2
http://www.symantec.com/business/support/index?page=content&id=TECH94910