xp不能启动，ghost恢复，重装系统皆不能根治
先出现
STOP:c000021 a unknown hard Error.
Unknown hard Error
后来频繁出现
A problem has been detected and windows has been shut down to prevent damage to your computer
unmountable_Boot_volume
If this is the first time you've seen this stop error screen,restart your computer.If this screen appears again,follow these steps:
theck to make sure any new hard ware or software is properly installed.If this is a new installation,ask your hardware or software manufacturer for any windows updates you mighr need.
If problems continue,disable or remove any newly installed hardware or software.Disable BIOS memory options such as caching or shadowing.If you need use safe mode to remove or disable componennts,restart your computer,press F8 to select Advanced startup options,and then select safe mode.
Technical information:
*** STOP:0X000000ED(0X81741508,0XC000009C,0X00000000,0X00000000)
但是如F11后，可启动系统，不久后又出现上述蓝屏
用户系统信息：Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
