The Xbox 360 is the second generation video game console manufactured and marketed by Microsoft. The Xbox 360 features an integrated Xbox Live Online service, Windows Media Center multimedia capabilities and access to third-party video streaming services. Every Xbox 360 has a unique serial number that is used to identity a specific Xbox 360 console. Your can find this serial number by using the onscreen Xbox 360 menus or by locating the barcode sticker on the rear of the console.
Connect your Xbox 360 to your television and power on the console.
Click the "My Xbox" option.
Click the "System Settings" option.
Click the "Console Settings" option and then select "System info." Your television will display your Xbox 360 serial number.
Look at the back of your Xbox 360 console.
Find the barcode sticker on the back of your Xbox 360 console. The bar code sticker is located just above the A/V port.
Locate the serial number. The serial number is printed just below the barcode on the barcode sticker.