Hello,
System requirements for the Symantec Endpoint Protection client software
32-Bit:
The following operating systems are supported:
- Mac OS X 10.4 - 10.7
- Window 2000 Professional/Server/Advanced Server/Datacenter Server with Service Pack 3 or later
- Windows XP Home/XP Professional/XP Embedded with Service Pack 1 or later
Note: Windows XP supports a limited number of concurrent users if the clients are in "push" mode. Use "pull" mode on Windows XP servers for up to 100 clients. For more information, search for Symantec Endpoint Protection Manager 11.x communication troubleshooting on the Symantec Support Web site.
- Windows Server 2003 R2, Standard Edition/Enterprise Edition/Datacenter Edition/Storage Edition/Web Edition
- Windows Server 2003 with Service Pack 1, Standard Edition/Enterprise Edition/Datacenter Edition/Storage Edition/Web Edition
- Windows Server 2003 with SP2, Standard Edition/Enterprise Edition/Datacenter Edition/Storage Edition/Web Edition
- Windows Vista (all x86 versions and Service Packs)
- Windows 7 (All x86 versions including SP1)
- Windows Fundamentals for Legacy PCs
- Windows Server 2008 Standard/Windows Server 2008 Enterprise/Windows Server 2008 Datacenter/Windows Storage Server 2008/Windows Web Server 2008 (R2 and all Service Packs supported). Core installations are supported.
- Windows Small Business Server 2000/Windows Small Business Server 2003
64-Bit:
The following operating systems are supported:
- Mac OS X -- N/A
- XP Professional with Service Pack 1 or later
Note: Windows XP supports a limited number of concurrent users if the clients are in "push" mode. Use "pull" mode on Windows XP servers for up to 100 clients. For more information, search for Symantec Endpoint Protection Manager 11.x communication troubleshooting on the Symantec Support Web site.
- Windows Server 2003 R2, Standard Edition/Enterprise Edition/Datacenter Edition/Storage Edition/Web Edition
- Windows Server 2003 with Service Pack 1, Standard Edition/Enterprise Edition/Datacenter Edition/Storage Edition/Web Edition
- Windows Server 2003 with SP2, Standard Edition/Enterprise Edition/Datacenter Edition/Storage Edition/Web Edition
- Windows Vista (all x64 versions and Service Packs)
- Windows 7 (all x64 versions including SP1)
- Windows Server 2008 Standard/Windows Server 2008 Enterprise/Windows Server 2008 Datacenter/Windows Storage Server 2008/Windows Web Server 2008 (R2 and all Service Packs). Core installations are supported.
- Windows Essential Business Server 2008 Standard Edition/Windows Essential Business Server 2008 Premium Edition (all Service Packs and R2 supported)
- Windows Small Business Server 2008 Standard Edition/Windows Small Business Server 2008 Premium Edition (all Service Packs and R2 supported)
Check this Article:
System requirements for Symantec Endpoint Protection and Symantec Network Access Control 11.0.7
http://www.symantec.com/docs/TECH165172
Hope that helps!!