首先你必须安装 Games for Windows Marketplace Client

First you have to install Games for Windows Marketplace Client

下载:http://www.xbox.com/en-US/LIVE/PC/DownloadClient

完成上述客户端软件的安装后，安装您的 XNA Studio 4，它应该可以工作了.

After completing the install of the above client software, install your XNA Studio 4 and it should work.