A Windows Vista or Windows 7 Media Center PC includes all the software to use your Xbox 360 as an Extender. You do not need to download additional software. Use the following steps to connect your Xbox 360.

STEP 1
If you were previously using your Xbox 360 with a Windows Media Center Based PC, you will need to remove the existing connection. Otherwise skip to Step 2.

On the Windows XP Media Center PC

• Click Start, point to All Programs, point to Accessories, point to Media Center, and then click Media Center Extender Manager.
• Select your Xbox 360 and click Properties.
• Click Remove.
• Click Yes to confirm removal.

On the Windows Vista or Windows 7 Media Center PC

• Click Start, Windows Media Center.
• Select Task, Settings.
• Select  Extender.
• Select your Xbox 360 Media Center Extender.
• Select Uninstall.

On Xbox 360

• On Xbox 360, go to My Xbox and then System Settings, then select Computers.
• Select Windows Media Center, and then press the A button.
• Select Disconnect.
• Press the B button until you return back to the System Settings.

STEP 2
Gather Setup Key from Xbox 360

• Press the Media Center Start button on the remote or go to My Xbox, then select Windows Media Center.
• Advance through the on-screen instructions to obtain the 8-digit Media Center Setup Key. Write this key down.

STEP 3
Add Extender

• At the Windows Vista or Windows 7 Media Center PC, launch Windows Media Center. Select Start, Windows Media Center.
• Select Tasks, Add Extender.
• When prompted, provide the 8-digit setup key you received from your Xbox 360.
• Complete the Extender setup.

STEP 4
Print the Media Center Quick Reference Guide