请教各位大内高手，我硬盘上只能看到文件目录而打不开文件，怎么办？

请教各位大内高手，我硬盘上只能看到文件目录而打不开文件，怎么办？
I left my computer on over night, and the computer can't start any more on next day. I put the hared drive on another computer, I only can read the catalogue， and can't open any file. What should I do? How do I retrieve the hard drive? Please help!