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1. Open Media Center on your PC.
2. Under "Tasks", select "add extender". Follow the on-screen instructions until it asks for your extender's ID.
3. Turn on your xbox360. Travel to the Media blade. Select Media Center, select continue, and get your Extender ID number. 
4. Enter the number on Media Center and continue following the rest of the on-screen instructions. Your PC will automatically send the 360 into Media Center.
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