Q:

How many cpu sockets does Windows 10 support?

I would like to build a new computer (it's been 7 years since the last one). Does Windows 10 support more than one CPU socket?

A:

Depends on windows variant and architecture. Win10 Pro x64 supports 2 sockets, 256 logical cores and up to 512GB RAM
For more sockets you need to get a "server" os
There's an answer from ms insider here

