请教

我的电脑一直反复启动,但又无法进入WINDOWS界面(WINDOWS XP);在安全模式下查毒,又没有发现.请高手指点如何才能解决问题?到底是有病毒还是机器硬件故障?
屏幕上显示:
stop:c000021a (fata,system error) the windows logon process system process terminated unexpectedly with a status of 0x0000005 (0x00000000,0x00000000)the system has been shut down
谢谢

所有跟帖： 

• If I were you -vtcc- ♂ (488 bytes) () 04/10/2007 postreply 10:14:28

• 回复：If I were you -cowboynj- ♂ (33 bytes) () 04/11/2007 postreply 08:49:38

• 回复：请教 -用户用户- ♀ (106 bytes) () 04/11/2007 postreply 11:58:40

• 回复：回复：请教 -cowboynj- ♂ (34 bytes) () 04/11/2007 postreply 13:12:59