Hello Community,
Beginning with version 10.3.1, compatibility with 32-bit versions of the Mac OS X operating system has been discontinued. Please check TECH213234.
Symantec Encryption Desktop for Mac OS X Compatibility with 32-bit Operating Systems
Installation-related error message:
"Installation check failure. Encryption Desktop can’t be installed on this computer.. Your Mac OS X system has been started up using the 32-bit kernel. To install Symantec Encryption Desktop, you must start up your system using the 64-bit kernel"
See the following links for the Release Notes for version 10.3.1.
Regards,
dcats