What is the minimum requirement for installation of sep client in window system?

What is your SEP version?

What version do you have try to install ?

System Requirements for Symantec Endpoint Protection, Enterprise and Small Business Editions, and Network Access Control 12.1.4

System Requirements for Symantec Endpoint Protection 12.1.5

SEP knowledgbase

http://www.symantec.com/business/support/index?pag...

<subhead></subhead>Symantec Endpoint Protection Windows and Mac client system requirements

Processor

• 32-bit processor for Windows: 1-GHz Intel Pentium III or equivalent minimum (Intel Pentium 4 or equivalent recommended)
• 64-bit processor for Windows: 2-GHz Pentium 4 with x86-64 support or equivalent minimum. Itanium processors are not supported.
• 32-bit processor for Mac: Intel Core Solo, Intel Core Duo.
• 64-bit processor for Mac: Intel Core 2 Duo, Intel Quad-Core Xeon

  
Physical RAM

• Windows: 512 MB of RAM (1 GB recommended), or higher if required by the operating system
• Mac: 2 GB of RAM

 
Hard drive

• Windows: 850 MB of available hard disk space for the installation; additional space is required for content and logs
  Note: Space requirements are based on NTFS file systems.
• Mac: 500 MB of available hard disk space for the installation

 
Display

800 x 600

 
Operating system

• Windows XP Home or Professional (32-bit, SP2 or later; 64-bit, all SPs)
• Windows XP Embedded (SP2 or later)
• Windows Vista (32-bit, 64-bit)
• Windows 7 (32-bit, 64-bit, RTM and SP1)
• Windows Embedded Standard 7
• Windows 8 (32-bit, 64-bit; Windows To Go is not supported)
• Windows 8.1 (32-bit, 64-bit; Windows To Go is not supported)
• Windows Server 2003 (32-bit, 64-bit, R2, SP1 or later)
• Windows Server 2008 (32-bit, 64-bit, R2, SP1, and SP2)
• Windows Server 2012 (all editions)
• Windows Server 2012 R2 (all editions)
• Windows Small Business Server 2003 (32-bit)
• Windows Small Business Server 2008 (64-bit)
• Windows Small Business Server 2011 (64-bit)
• Windows Essential Business Server 2008 (64-bit)
• Mac OS X 10.7, 10.8, 10.9

12.1.5 is the latest version

System Requirements for Symantec Endpoint Protection 12.1.5