SEP 12.1.2 don't work on Windows 8

Hello:

I download SEP 12.1.2015 It's running perfect on my manager server but on windows 8 clients the computer have a conflict issues and pc go to restart with a NON_PAGE_FOULT blue screen message.

Follow this link, this version 12.1.2015 support Windows 8

http://www.symantec.com/business/support/index?page=content&id=HOWTO81091

Whats Wrong? Do I need to download any fix pack?

Thanks