Hi guys and gals, Im running Windows XP pro x64 I have just run a windows update on my system. Now windows won't boot, it keeps coming up with.(Windows could not start because the following file is missing or corrupt (windows root)\systems32\ntoskrnl.exe. please re-install a copy of the above file. I have got the original install disc. I have tried to do a repair,i can log into windows but im not real shure where to go from here if some one could help it would be great.