WMIC (Windows Management Interface Command) is a command line tool that returns information about the system where it's run. To open a command line shell, at the bottom of the screen, left side of the taskbar, in the Windows search text box, type cmd. In the menu that appears, select Command Prompt. To learn your computers model, vendor, and serial number, type the command shown below at the command prompt.
wmic cpu get deviceid,numberofcores,numberoflogicalprocessors

This will return the number of Cores/Logical Processors for each CPU on your machine.
More Windows Administration Information:
• To Protect Your PC Disable the Windows Scripting Host
• What Is Virtualization and What Are the Benefits?
• DOS Switches and Wild Cards
• How to Change Process Priorities in Windows Task Manager
• Disable Long Filenames to Improve Window's Performance
• Network Security Through the Principle of Least Privilege
• Use the HOSTS File to Block Web Sites
• Computer Technician's Guide to Electronics Disposal and Recycling
• Choosing a Tape Drive
• How to Setup DHCP (Dynamic Host Configuration Protocol) on a Windows Server
