I get this error when the machine boots into windows XP. When Xp comes up it first says an error about userinit.exe failing with the above error. It gives the same error for anything I try to run. I can't get the machine to allow me to log into any of the users on the machine. I do get it to boot into safe mode but it won't bring command prompt up and when I try to run anything through task managers run option it just crashes task manager and doesn't bring up the program I tried to bring up. Any ideas for the error? I'd like to solve the error without having to format the machine.