此驱动默认还原C盘，缓冲文件放D盘（根据inf文件配置）。

此代码为课程设计而写，只实现了最基本的功能，很多细节问题并未考虑。另外，

对读写请求未进行过滤，还原系统盘时，Win7下测试，系统启动后会显示

“正常进入Windows”等选项，系统在关机时应该做了记录日志，被拦截后出

现此提示。-This drive to restore the C drive by default, cache files, put the D disk (inf file configuration). This code for curriculum design, write, implement only the most basic functions, does not take a lot of the details. In addition, the read and write requests are not filtered, to restore a system disk, Win7 under test, after the system startup " normal access to the Windows"　options, system shutdown should do the logging, and were intercepted after this prompt.