computer wont boot up anymore... advice?

[PremiumG]

Upon booting to windows, i get this error: lsass.exe: class object not found.

i tried safe mode.. same problem.. I tried BartPE to boot up and replace lsass.exe file, same problem. System restore doesn't seem to work when ran from BartPE.

i did a repair install of XP, same problem.

any advice? running surface scan now to see if its a HDD error of some sort.

 

[warcrow]

Look here:

http://www.google.com/search?h...ss.exe&btnG=Search

...were you possibily infected?