Does you Server fullfill this requrement
Symantec Endpoint Protection Manager system requirements
Processor
• 32-bit processor: 1-GHz Intel Pentium III or equivalent minimum (Intel Pentium 4 or equivalent recommended)
• 64-bit processor: 2-GHz Pentium 4 with x86-64 support or equivalent minimum
Note: Intel Itanium IA-64 and PowerPC processors are not supported.
Physical RAM
1 GB of RAM for 32-bit operating systems, 2 GB of RAM for 64-bit operating systems, or higher if required by the operating system
Hard drive
4 GB or free space for the server, plus 4 GB for locally installed database
Display
800 x 600
Operating system
• Windows 7 (32-bit, 64-bit, RTM and SP1; all editions except Home)
• Windows XP Professional (32-bit, SP3 or later; 64-bit, all SPs)
• Windows Server 2003 (32-bit, 64-bit, R2, SP1 or later)
• Windows Small Business Server 2003 (32-bit)
• Windows Server 2008 (32-bit, 64-bit, R2, RTM, SP1, and SP2)
• Windows Small Business Server 2008 (64-bit)
• Windows Essential Business Server 2008 (64-bit)
• Windows Small Business Server 2011 (64-bit