您好:
您可以先选择疑难解答 -->选择高级选项----->选择启动设置 重启后选择修复计算机 看看能否成功修复系统。
如果不行,如果您是dell服务器可以参考这篇文档利用server 2012 R2光盘进入winpe进行系统修复
Windows Server 2012 R2 异常关机自动修复失败循环处理方法
http://blog.51cto.com/3387405/1417596
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Andy YOU
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