![]() During the recovery of lost data, the software tests the consistency of file and saves the same as a new file. If the above rule fails, PhotoRec searches the media for the first ten files, sector by sector from their locations by calculating the location of cluster or block. If the same is not corrupted, the file value can be had from volume boot records in case off NTFS, FAT file systems and from the superblock in case of ext2 / ext3 / ext4 file systems. Then, the PhotoRec software tries to find the cluster or data block in the file system. However, the data of the file is still present in the file system till the cluster or sector is overwritten by some other / new data.Īlso Read: Stellar Phoenix Photo Recovery – Easily Recover Deleted Media Files from Memory or SD Card The major or meta information of a file like size, date / time, name, location of the cluster or data block are also lost when a file is lost or deleted. This in turn reduces seek or search time of drives for writing or reading data from / to a hard disk. Most of the Operating Systems try to store any data in a continuous or contiguous manner just to minimize the data fragmentation. When a file system is formatted they are constituted in to sectors and the above referred clusters or blocks remains at constant No. The most known files systems like ext2 / ext3 / ext4, NTFS and FAT store the electronic data like files or photos or audio or video in clusters or data blocks. How the PhotoRec recovers your lost files / data : Some of the file formats the PhotoRec easily recover are graphics file formats, JPEG, HTML, PDF, Office, ZIP etc. PhotoRec can recover file formats of more than 390 file extensions belonging to 225 file families. PhotoRec can recover the whole file in most of the cases where there is no fragmentation of data. Generally the PhotoRec software searches all known file extensions. This software has also been successfully used and tested in various PMP or Portable Media Players like iPod and also with the following Digital Cameras:
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