使用WD Scorpio BEVS硬盘替代原装硬盘

for now you can use max 20GB, but when Microsoft will release larger drives you will be able to use as much space as Microsoft's largest HDD.

目前意义还不大，还是要等待微软出了更大的官方硬盘，才能支持到微软的最大硬盘容量。