An experienced malware helper has been requested to respond to your topic, but I may be able to help you without waiting for them to be available, so would you please do the following (since it appears that you do have your XP installation CD):
Start the Recovery Console using a Windows XP installation CD (or an XP Recovery Console CD).
- Insert the CD in the computer's optical disk drive tray.
- Start or re-start the computer so that it boots from the CD. You may be prompted to "Press any key". (If the system does not appear to be booting from the CD, you may need to enter the BIOS Setup Menu and change the boot order, so that the CD-ROM/optical disk drive is set to boot before the hard disk drive.)
- When the Welcome to Setup screen appears, press the R key on your keyboard to start the Recovery Console.
- The Recovery Console will ask which Windows installation you would like to log on to.
If you have multiple Windows installations, it will list each one, and you would type the number (that is 1, 2, or 3 etc) associated with the installation you would like to work on (usually C:\Windows) and press the <ENTER> key.
Please advise if you are not seeing C:\Windows listed (and you think that you should).
If you have just one Windows installation showing, type 1 and press <ENTER>.
- You will be prompted for the Administrator's password. If there is no password, (and this is most likely), simply press <ENTER>.
- You will be presented with a C:\Windows> prompt.
Please advise if you are not seeing a C:\WINDOWS> prompt (and you think that you should).
At the C:\Windows>
prompt, type chkdsk /r
and press <ENTER> (Note: There is a space between "chkdsk" and "/r")
- This will take some time to run and at times may appear stalled but just let it run.
- If any errors are found/repairs made, run chkdsk /r again, and repeat if necessary.
" at the prompt and press <ENTER> to close the Recovery Console and restart your system.
Does Windows start normally now?