Quadrouneraser V2.5 Baidu Download Address: http://pan.baidu.com/s/18CtXl
From the Baidu Encyclopedia data Recovery principle:
When we hold a file to the hard disk, the system first writes the file name and the size in the file allocation table, and continues to write the file content in the data area from the free space of the data area. Then start to write to the data area of the real content of the file, a file storage operation is completed.
Delete operation is very simple, when we need to delete a file, the system is only in the file allocation table in front of the file to write a deletion flag, indicating that the file has been deleted, he occupied the space has been "released", other files can use the space he occupies. So, when we delete the file and want to get back to him (data recovery), just use the tool to remove the flag removed, the data has been restored. Of course, the premise is that no new file writes, the space occupied by the file is not covered by the new content
