I got this  error while trying to login to HP ProBook laptop. Whenever I put password I got HRESULT error with 0x8007ffff code and on the bottom it just says 'OK' i press it and it goes back to the login screen. First option is to use HP recovery tools and try to use recovery/repair CD Using this option you are in risk to lose your data-Not Good. Other option is try using some other administrative account. I was able to login with local administrative account , also you can use domain Read more