Can't find OID for WinServer 2008R2?

Question

SNMP

I need to monitor a windows server, but I can't seem to find the OID for the built-in SNMP service in winServer 2008R2. Tell me who knows. I need to monitor: the load on the CPU, the amount of free space on the HDD (4pcs), RAM, and the load on the ethernet. (on the first server 1 piece, on the rest 3-5).
If anyone has a complete list, please post it.