With PartitionGuru, you can recover lost files and lost or invalid partitions.
In fact it is the #1 partition recovery software. It also supports RAID recovery. Besides data recovery, PartitionGuru is a powerful partition management program, you can create, format, resize or backup partition with it. Numberous disk utilities are provided, such as Quick Partiton, Integral Disk Clone, Files' Permanent Deletion and so on. It's Windows7 compatible.