My system is blanking out when im trying to instal windows service pack 2 xp home ed. It gets half way through the instalation then restarts saying your system has recovered from a serious error , one or more of the registry files had to be recovered by use of log or alternate copy, the recovery was successful , but when i re-instal exactly the same thing happens . I have tried system restore and self help but i am going in circles . please could some one help ?