Does anybody have the knowledge and time to help with this problem. The problem has just started today with no obvious reason. Yesterday everything was OK. When I try to boot I get the black screen with \windows\system32\config\system maged or missing. I have the facility of PC Angel but that tells me I will loose all my appliations. I have tried to use a copy of XP on CD and that says to stop ith the ftal bluescreen. Any ideas?