Recovery Console overview
If safe mode and other startup options do not work, you can consider using the Recovery Console. This method is recommended only if you are an advanced user who can use basic commands to identify and locate problem drivers and files. In addition, you must be an administrator to use the Recovery Console.
Using the Recovery Console, you can enable and disable services, format drives, read and write data on a local drive (including drives formatted to use NTFS), and perform many other administrative tasks. The Recovery Console is particularly useful if you need to repair your system by copying a file from a floppy disk or CD-ROM to your hard drive, or if you need to reconfigure a service that is preventing your computer from starting properly.
1.There are two ways to start the Recovery Console:
2.If you are unable to start your computer, you can run the Recovery Console from your Setup CD.
As an alternative, you can install the Recovery Console on your computer to make it available in case you are unable to restart Windows. You can then select the Recovery Console option from the list of available operating systems on startup.
After you start the Recovery Console you will have to choose which installation you want to log on to (if you have a dual-boot or multiple-boot system) and you will have to log on with your administrator password.
The console provides commands you can use to do simple operations such as changing to a different directory or viewing a directory, and more powerful operations such as fixing the boot sector. You can access Help for the commands in the Recovery Console by typing help at the Recovery Console command prompt.
For information on starting and using the Recovery Console, see Related Topics.
Once you are running the Recovery Console, you can get help on the available commands by typing help at the command prompt.
To start the computer and use the Recovery Console
(From the Setup CD-ROM )
1.Insert the Setup compact disc (CD) and restart the computer. If prompted, select any options required to boot from the CD.
2.When the text-based part of Setup begins, follow the prompts; choose the repair or recover option by pressing R.
3.If you have a dual-boot or multiple-boot system, choose the installation that you need to access from the Recovery Console.
4.When prompted, type the Administrator password.
5.At the system prompt, type Recovery Console commands; type help for a list of commands, or help commandname for help on a specific command.
6.To exit the Recovery Console and restart the computer, type exit.
(If you have already installed the Recovery Console)
1.During Startup, select Recovery Console from the startup options menu.
2.If you have a dual-boot or multiple-boot system, choose the installation that you need to access from the Recovery Console.
3.When prompted, type the Administrator password.
4.At the system prompt, type Recovery Console commands; type help for a list of commands, or help commandname for help on a specific command.
5.To exit the Recovery Console and restart the computer, type exit.
Go here for info on Recovery Console commands
http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/boot_failsafe.mspx?mfr=true