本來就有修復選項,不過有人找不到或不會用

http://support.microsoft.com/?id=326215


1. Configure the computer to start from the CD or the DVD drive. For more information about how to do this, see the computer documentation or contact the computer manufacturer.
2. Insert the Windows Server 2003 CD in the computer's CD or DVD drive.
3. Restart the computer.
4. When you receive the message that prompts you to press any key to start from the CD, press a key to start the computer from the Windows Server 2003 CD.
5. When the Welcome to Setup screen appears, press the R key to start the Recovery Console.
6. Select the Windows installation that you must access from the Recovery Console.
7. Follow the instructions that appear on the screen, type the Administrator password, and then press ENTER.
8. At the command prompt, type the appropriate Recovery Console commands to repair your Windows Server 2003 installation.

For a list of commands that are available in the Recovery Console, type help at the command prompt, and then press ENTER.

NOTE: Alternatively, you can install the Recovery Console as a startup option on the computer so that it is always available. For information about how to do so, see the Precautionary Measures section in this article.
9. To quit the Recovery Console and restart the computer, type exit at the command prompt, and then press ENTER.


APPLIES TO
• Microsoft Windows Server 2003, Datacenter Edition
• Microsoft Windows Server 2003, Enterprise Edition
• Microsoft Windows Server 2003, Standard Edition
• Microsoft Windows Server 2003, Web Edition
• Microsoft Windows Server 2003, Datacenter Edition
• Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems