I have a Windows XP box that had a partition on a 1TB drive with a bunch of data on it. All of a sudden the partition is gone. Not sure what happened, but I just tossed the drive into a Window 7 box with Active Partition Recovery on it, but it's the demo version, so I can't recove the partition. Does anyone know of good free software to recover a missing partition? One thing to note... I can see the drive as a local drive, but it has no drive letter assigned to it and will not let me do so as Windows 7 thinks it doesn't have a partition. I am guessing the MBR got damaged somehow, but can't fix that without a drive letter.