昨天正常关机后，再次启动时，就出下面的对话框：lsass.exe 系统错误 表示已遇到或制定一服务未知的修定号码。该号的可能超过服务所知的最近修正。再也不能正常启动，进入XP了。
我只好割了系统盘，从新装XP，结果安装半道，设置完时区，输入法等等，又出现下面的蓝屏：
A problem has been detected and windows has been shut down to prevent damage to your
computer.
If this is the frist time you are seen this stop error screen, restart your computer .If
this screen appears again,follow these steps:
check to be sure you have adequate disk space. If a driver is identified in the Stop
message,disable the driver or check with the manufacturer for driver updates. Try changing
video adapters.
check with your hardware vendor for any BIOS updatos. Disable BIOS memory options such as
caching or shadowing. If you need to use safe Mode to remove or disable components, restart
your computer,press F8 to select Avanced startup options, and then select safe mode.
