If you are saying that you machine will not boot from CD, it would seem likely that the BIOS are not configured to allow it. In the moments just before the computer hands control over to the OS on the hard drive, there should be a short time during which the BIOS can be accessed by the proper key from the keyboard.
Please consult with your manufacturer's website to determine the correct key for your computer. This key should be tapped about twice a second from the very moment that the power button is pushed.
If no access is still allowed to the BIOS, I would consider removing the hard drive so that the machine had no choice in the matter.
Once a boot from CD is enabled as first choice, boot from and run the Avira Rescue disc: http://www.free-av.c...cue_system.html
Download the .iso file and 'burn' to CD. If you are without access to Nero or Roxio, try free CDBurnerXP: http://www.cdburnerxp.se/download.php
That should remove enough to get Windows to boot, but will not necessarily result in a totally disinfected system.
Therefore, I suggest that you follow the procedures outlined here: http://www.geekstogo...-Log-t2852.html
When complete, post a HiJackThis log here: http://www.geekstogo...o-Here-f37.html
Posting a HJT log elsewhere will only delay the help you need.
In your first post, please provide full system specifications and a concise description of the problem, including the actions you have already taken.
You will be helped by a trained malware removal specialist.
If problems remain after your helper gives you a clean bill of health,
post back here and we will assist in getting everything sorted.
Good luck, and happy hunting.