Why does the system not see the third core?

Question

System administration

Vps, windows 7, three cores, 16 gig.
But I see only 2 cores - why is that? But in the controller all 3.

Answer 1

Why does the system not see the third core?

Because he sees.

But I see only 2 cores - why is that? But in the controller all 3.

Because you need to read more carefully, it says 2 processors

Answer 2

Ask the host

Answer 3

uncheck "number of processors" and reboot.