Limiting SEPM to only 64bit definitions

Hello, 

While i was searching for solution to limit SEPM disk usage, i stumbled upon short post mentioning limiting SEPM to only store 64bit data instead of both 32/64bit. 

Since my environment is entirely homogenic, I googled for more details on this topic, but to no avail. 

Could anyone please provide some more information on how to perform such limitation?

We use Symantec Endpoint Protection Small Business Edition, SEPM version 12.1.4104.4130.