As the topic states I get a STOP error right after the "Starting Windows" screen shows up. Safe modes all result in the same way (I believe Ntfs.sys is corrupt). Ubuntu Linux works fine, reads/writes fine, etc. Where can I get a new ntfs.sys file to use, or do I have to do a full reinstall (The Win7 install CD boots to a blue screen also). I can access my Win7 partition. Also It wouldn't be much of a pain to reinstall, all my doc and games are on a different partition, but I would still like to avoid it.