Here are some things you can try, among them, a repair install though I'm
dubious that you will be able to do that given what you've already posted.
Boot the system, start tapping F8, at the menu, select "Last known good
configuration," and press enter. If that fails to resolve it, boot the
system start tapping F8, at the menu select "Safe Mode" and press enter. At
Safe Mode, you should be offered the option to use System Restore, accept
and try restoring your system to a time prior to when this began. If you
are not given the option at Safe Mode, then, one in Safe Mode, go to
Start\All Programs\Accessories\System Tools\System Restore.
If this fails to resolve the issue, see below:
Assuming you have an actual XP CD as opposed to a recovery CD, try a Repair
install as follows:
NOTE, while a repair install should leave your data files intact, if
something goes wrong during the repair install, you may be forced to start
over and do a clean install of XP. If you don't have your data backed up,
you would lose your data should that eventuality occur.
Boot from the CD. If your system is set to be able to boot from the CD, it
should detect the disk and give a brief message, during the boot up, if you
wish to boot from the CD press any key.
Once you have pressed a key, setup should begin. You will see a reference
asking if you need to load special drivers and another notice that if you
wish to begin the ASR (Automatic Recovery Console) depress F2. Just let
setup run past all of that. It will continue to load files and drivers.
Then it will bring you to a screen. Eventually, you will come to a screen
with the option to (1) setup Windows or (2) Repair Windows Installation
using the Recovery console.
The first option, to setup Windows is the one you want and requires you to
press enter. When asked, press F8 to accept the end user agreement. Setup
will then search for previous versions of Windows. Upon finding your
version, it will ask if you wish to Repair your current installation or
install fresh. Press R, that will run a repair installation. From there
on, follow the screens.
If you only have a recovery CD, your options are quite limited. You can
either purchase a retail version of XP will allow you to perform the above
among other tools and options it has or you can run your system recovery
routine with the Recovery CD which will likely wipe your drive, deleting all
files but will restore your setup to factory fresh condition.
If all of the above fail, You're next step would be a clean install. If
you are backed up, you would simply follow the instructions I post below.
However, if you are not, the only way you can attempt to save your data
would be to follow the instructions below but install XP to a separate
partition. If you have no such partition available, you would need third
party software such as PowerQuest's (Now owned by Symantec) Partition Magic:
www.powerquest.com.
NOTE: the following will wipe whatever drive on which this procedure is
performed and you will lose any data on that drive if not backed up:
Assuming your system is set to boot from the CD-ROM drive, boot with the XP
CD in the drive. If it isn't or you are not sure, you need to enter the
system's BIOS. When you boot the system, the first screen usually has
instructions that if you wish to enter setup press a specific key, when you
see that, do so. Then you will have to navigate to the boot sequence, if
the CD-ROM drive is not first line, set it first in the boot sequence. Save
your settings and exit with the XP CD in the drive. The system will reboot.
A few screens into the boot process, if you see the message on the boot
screen to "Press any key in order to boot from the CD," do so.
After loading drivers and files, you should be taken to a screen with
the following:
To Setup Windows XP now, press ENTER.
To Repair a Windows XP Installation using Recovery Console press R.
To Quit setup without installing Windows XP, press F3.
In your case, press ENTER.
Agree to the License agreement by pressing F8.
You will then be taken to a screen with two options.
To repair the selected Windows XP installation press R.
To continue installing a fresh copy of Windows XP without repairing,
press ESC.
This will bring you to a partition map where you
can delete, create and format partitions.
Select the drive you wish to format, delete the partition, then create a new
partition, format as desired and continue with XP installation.