blue screen of death or a c++ runtime error

i have a dell latitude that im trying to fix for a friend..it has xp on it but the sticker on the bottom says 98 se...i called dell and they say it actually came with windows 95..once i turn on the computer i can go to any options..like boot with f12 or f2 or try safe mode with f8..i can get the xp to come up and load but right after that a c++ runtime error message pops up it says program:\??\c:\windows\system32\winlogon.exe ...i can read it all but at the bottom it say tat this program as requested the runtime to terminate in an unusual way. somtimes i get a fatal system error..blue screen..i dont have a 98 cd...if anyone could help me in any way it would be appreciated...thank you