Partitions not managed by SEE ?

Hi everyone,

We have Latitude 7240 systems, and have been testing with SEE 8.2.1 MP9.   After installing Symantec Endpoint Encyrption the system will reboot and full disk encryption status says "Paritions not managed by SEE"  ..  The option to Encrypt Selected Partition is grayed out.

One thing stated inside the log file EAHDCliEncrypt.log it states "CEncryptServer::GetSectorMap() - sectorMap.Lookup(0) failed."

Does anyone know some level of compatibility exists between this Latitude model and SEE, or possibly with Flexchoice product that our licenses have the option of migrating over to?

Thanks very much for your guidance!