Hello everyone, I am new to this forum so pls to meet you. I came across this forum because I was getting desperate.... I am using a home build computer that have 2 hard drives (80GB and 120GB), running windows xp pro. It was working fine ( the last thing I done was to watch a movie) when I start it this morning, I give me the message windows can not start because ntfs.sys is missing or corrupted..... I search the web for answer/ help etc. etc. ....I read the article from Microsoft and try everything I can think of... I try to use the XP pro CD.... it stalled at the the blue screen with the heading Windows Setup and nothing below.... try to boot the machine with norton, work, but just keep scanning A drive and give error message for all the other drive letter.... try to boot with diskette (bootable disk file program from Microsoft), Bios is set to read disk drive first but is not doing it.....it load all the drive (A, master harddrive, slave hard drive, CD rom drive etc)....but didn't run the disk.... what to do? any suggestion? What can cause this?