SEP 14 Windows OS Support

For SEP 14, will this support Win7 32-bit OS or is it just the SEPM that cannot run on SERVER 32-bit architechture?

Will it support legacy servers that are running anything older than server 2008?

I believe that Win7 32 bit is supported by Microsoft until 2020 so I'm not sure why Symantec would end support for this OS but, again the information out there is a bit confusing.

I'm hoping to get a clear understanding of this