解决方法:
依次检查并更新补丁:KB2919442,KB2919355,kb2999226
KB2919442:https://www.microsoft.com/zh-cn/download/details.aspx?id=42153
KB2919355:https://www.microsoft.com/zh-CN/download/details.aspx?id=42334
kb2999226:https://support.microsoft.com/en-us/kb/2999226
补丁成功安装之后重新进行安装python即可。