I had installed Windows Xp on my system. My system seems to be full of viruses, so i decided to format my C drive. At the time of installation process it had asked me to press a button which was shown on my DOS screen. After that it gave me an error message that Windows could not start because of the following file is missing or had been corrupted <Windows root> \ system32 \ hal.dll. Now it's asking me to re-install a copy of the above file. Another problem is that even my CD-ROM is not accepting anything. Can any one help me out to resolve this issue? Any help on this would be appreciated.
Thanks in advance.