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:
• Disable Kernal Paging to Speed Up Windows
• Windows PC Performance Troubleshooting and Optimisation
• Recovering an Older Version of a File
• Command Line to Get Computers Model, Vendor, and Serial Number
• Environment variables in PowerShell
• Command Line to Get Computer's Numner of CPU Cores
• Tweaks to Speed Up Internet Streaming Video
• How to Disable Windows Firewall in Windows 7
• Disable Long Filenames to Improve Window's Performance
• Use Free Autoruns Utility to Disable Unnecessary Startup Programs
