windowsXP landing problem

Users questions:After logging in to XP, open the QQ there are web pages, can be suddenly re-starting (regular), resulting in just do not go, starting to show is, config what files are damaged, can not start. Later, you can login, but on entering the board page, select the user that stuck. Said that "trying to restore the password is invalid" evenMody, and did not remember. Repaired with the disc, it still does not serve the purpose. Then, in the words of landing on the show "lsass.exe error, following is a row of " are still unable to login, you who know how to solve the ah?
Experts answer:lsass.exe is a secure authentication sub-systemThe process generally will be the error caused by a virus!
  • This information provided by the users.Thanks!