Booting from the DVD is no problem. I can do that. I have tried the repair options. Startup repair reports CorruptBootConfigData. I am investigating ways to fix that, but if I could get back into safe mode, I could just upgrade to Win 7 Ent since that is the DVD I have. I have tried chkdsk /r from the installation disc, but it takes too long and it always crashes before done. I did not get to try it from safe mode before it stopped giving me the option of safe mode. Safe mode is the only thing that does not crash.