XP系统开机，滚动条过后就黑屏，只有一个鼠标能动，无法进入桌面，任务管理器也调不出，达人指点怎么解决

如果你能说明出现这个问题之前的一次正常启动你做过什么操作应该能更准确的判断。
一般出现这样的问题，大多是由于系统的资源管理器调用失败造成的，如果你不想重做系统的话，建议你找个完整的安装盘修复一下系统，应该可以解决问题，还有一种简单的方法就是从别人电脑上拷贝整张的资源管理器覆盖你电脑对应的文件，要是修复无法解决问题，那说明可能中毒了。

进安全模式试试，如果可以的话卸载最近安装的软件或者驱动看看。

重装系统比较可靠

中了Trojan:Win32/Daonol.G 木马病毒。详见
http://support1.ap.dell.com/cn/zh/forum/thread.asp?fid=70&tid=257710

在
http://social.technet.microsoft.com/Forums/en-US/itproxpsp/thread/dce1f6f0-e2f4-4d2f-a3c1-80f7e31a8628
中，有人用系统还原中的旧注册表信息覆盖出现黑屏后的注册表信息。他可能在这台机器上的其他盘上又装了一个操作系统或者将出问题机器的硬盘挂在其他机器上进行操作的。

PCS Tech的帖子如下：
I have fixed all three of my computers !!

The fix is to restore the registry hive files from a recent backup. If you don't have an actual backup see if you can copy them from a System Restore folder:

C:\System Volume Information\_restore{xxx...xxx}\RPxxx\snapshot

If you can't get into System Volume Information folder, change it's security temporarily so that you can.

Choose a recent RPxxx folder and copy the files listed below to C:\windows\system32\config. But don't get files that are too recent. I suggest using files dated prior to the offending updates, 10/13/2009 in this case:

_REGISTRY_MACHINE_SAM
_REGISTRY_MACHINE_SECURITY
_REGISTRY_MACHINE_SOFTWARE
_REGISTRY_MACHINE_SYSTEM

rename the existing hive files for safety's sake
rename the copied files without the "_REGISTRY_MACHINE_" part
Reboot and relax

To securityguy14 and Cal401: Based on the symptom differences ("I can boot Safe Mode with Command Prompt and have a working command prompt window"), I don't think yours is the same exact issue. But I do believe both are resulting from the recent updates and therefor related. My fix may also work for you.

One more thing, I also turned off automatic updates after I got them working. Perhaps later more information will come to light about this problem and a fix might appear that will allow me to turn auto-updates back on.

重装系统

重装