http://support.microsoft.com/kb/307545

Windows outlines exactly how to fix this.

You can use the windows floppies to access the recovery console:
Accessing the Recovery Console Without a Windows CD

Computer vendors very often do not provide a Windows disk with their systems. Instead they provide a Restore disk or just a hidden restore partition. They may provide a way to get into the Recovery Console but computer owners will have to check their particular setup. If, as is likely, the Recovery Console is missing there is another way to obtain it.

Microsoft provides software for creating a set of six diskettes for reinstalling Windows XP for those with no bootable CD.The details are here. It doesn't seem to be widely known but these disks also contain the Recovery Console. Thus creating this set of diskettes will give those without a Windows CD (but with a floppy drive) the option of using the Recovery Console. It is tedious; you have to wait while the system slogs through the setup process and loads all six disks but if it saves your system it will be worth it. Once you get to the Welcome Screen. the procedure is the same as with that with a CD described above.

If you have neither a Windows XP CD nor a floppy drive, there are methods for placing floppy disk images on a bootable CD. One easy way to create a bootable CD containing the Recovery Console from the Microsoft file mentioned above has been provided by Dean Adams and can be downloaded at this link.
http://commandwindows.com/recovery.htm

That should get you going in the right direction. You're probably gonna want to pick up a windows disk soon (just a precaution).

Check this link:

http://support.microsoft.com/default...;en-us;Q310994

For access to the bootable floppy files that get you into the recovery console.

Then follow the instructions here:

http://support.microsoft.com/kb/307545

to fix the issue.