本文的主要目的就是讲述Windows下数据恢复研究开发的整个过程，希望能对推动数据恢复技术本身的发展和完善做一点贡献。本文对Windows下数据恢复中的技术重点和难点进行了说明，总结了数据恢复的研究方法，对数据恢复算法进行了分类讨论。-The main purpose of this paper is to describe in Windows data recovery research and development of the whole process, hoping to promote the development of data recovery and improvement of the technology itself to make a little contribution. In this paper, data recovery under Windows key and difficult points in the technology are described, summed up the research methods of data recovery, data recovery algorithms are classified discussions.