Finding Serial Number on Windows or MacWindows:
- Open the Start menu and type in "System Information" and press Enter.
- In the System Information window, the serial number is located in the "System Summary" section.
- Look for the "Serial Number" field, and the serial number will be listed next to it.
- Click on the Apple menu in the upper-left corner of your screen.
- Select "About This Mac" from the drop-down menu.
- The serial number will be listed in the About This Mac window.