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File recovery method, device, computer equipment and storage medium

A file recovery and file technology, applied in the computer field, can solve the problems of low accuracy rate and low success rate of file recovery methods, and achieve the effect of high success rate and high accuracy rate

Active Publication Date: 2021-09-03
WONDERSHARE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a file recovery method, device, computer equipment and storage medium, aiming to solve the problem of low accuracy and success rate of the file recovery method based on the FAT32 system in the prior art

Method used

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  • File recovery method, device, computer equipment and storage medium
  • File recovery method, device, computer equipment and storage medium
  • File recovery method, device, computer equipment and storage medium

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0039] It should also be understood that the terminology used ...

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Abstract

The invention discloses a file recovery method, device, computer equipment and storage medium, which solves the problem of low accuracy and success rate of file recovery operations for deleted files in the storage structure of the current FAT32 system. The present invention sets the judging conditions in the file recovery operation based on the file storage characteristics, and specifically utilizes the feature that the storage space occupied by files of different sizes is different, and the number of clusters occupied is also different to calculate the length of the deleted file. Only when the length of the actually retrieved file matches the length of the deleted file is it determined that the actually retrieved file is a deleted file that needs to be restored. The invention avoids the uncertainty and instability of using the file name and file type characteristics as the file recovery judgment conditions in the past, and makes the success rate and accuracy of the file recovery operation higher.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a file recovery method, device, computer equipment and storage medium. Background technique [0002] In the storage structure based on the FAT32 system, deleted files will lose part of the address information in the corresponding file record items, so that the deleted files cannot be opened again by the user, but the physical information of the deleted files will still remain in the storage. among the sectors of the media. At present, the recovery method for deleted files mainly uses the address information of undeleted files to fill up the remaining address information in the file record item of deleted files to make it complete, and searches for the sector according to the filled address information, According to the file type, file name and other characteristics in the file record item of the deleted file, the sector is sequentially retrieved and the retrieved file matching...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14
CPCG06F11/1448
Inventor 王志雄彭重阳
Owner WONDERSHARE TECH CO LTD