能够正常进入安全模式么？
如果可以的话，更新一下显卡驱动以及BIOS。然后尝试干净启动：http://support.microsoft.com/kb/929135/zh-cn 。如果不行的话，你可以正常进入BIOS么？
另外，可以从windows 7启动盘启动，然后选择修复，看看能不能解决问题。
Regards,
Miya
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