我使用 Windows.System.Profile.HardwareIdentification.GetPackageSpecificToken(null).Id 转换为字符串，详情见 http://coding.kulman.sk/how-to-uniquely-标识-a-windows-8-device/

I use Windows.System.Profile.HardwareIdentification.GetPackageSpecificToken(null).Id converted to string, details at http://coding.kulman.sk/how-to-uniquely-identify-a-windows-8-device/