win xp media center 2005

Hai friends,

Am trying to format and reinstall win xp media center edition 2005 in my Toshiba Qosmio Laptop.

After formating computer is auto restarted but one error massage is showing that is
windows could not start because the following file is missing or corrupt:\windows\system32\config\system

Please give me any solution to recover from this problem

Thanks
Kiran