NDProxy.SYS Microsoft Corporation NDIS Proxy (network card driver) lbrtfdc.SYS Toshiba Libretto Floppy controller Sfloppy.SYS Microsoft Corporation SCSI Floppy Driver i2omgmt.SYS Microsoft Corporation I2O Utility Filter Changer.sys Microsoft Corporation SCSI CD-ROM Driver Cdaudio.sys Microsoft Corporation CD-ROM Audio Filter Driver Those are the files that are either corrupt or missing. Have you tried booting to "Last Known Good Configuration"? If not, boot to safe mode, go to the device manager and try to reinstall the drivers for the above (I'm not sure what I2O Utility is though). If that doesn't work, boot to safe mode, insert your xp disc, open a cmd window & type sfc /scannow then reboot. Still no luck after that? Boot to your xp disc & do a repair install.