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exFAT has been adopted from the Facts Association because the default file system for SDXC cards larger than 32 GiB.
When exfat partitions are deleted or formatted, the results of recovering big files or frequently modified files are extremely low. For instance, it is extremely difficult to completely recover the XLS or CDR files that happen to be edited and modified frequently. But files remain untouched have a high success rate. For instance, it is extremely easy to recover PDF, JPG or MPG files which are not modified frequently. For the reason that the FAT or exfat partition applies file allocation table to record the data of cluster chain fragments of each and every file. Following the deletion or formation, the data of cluster chain fragments will be emptied. For files are edited and modified frequently, because of the dynamic increase in the file length, many of them would be stored continuously inside the file system, which ends up the impossible recovery of file fragment information and therefore incompletely recovered files
Use “unformat” to recover data from formatted exfat partition from WD hard drive after quick format,full format,accidentally formatted,reformatting,High-level formatting,Low-level formatting.
Use “recover partition” to recover data from deleted exfat partition from WD hard drive
,lost exfat partition,changed exfat partition,damaged exfat partition from WD hard drive.Of course, if the dimensions or position of exfat partition is changed by format,It can not recover with “unformat” ,so that you can use “recover partition” mode.
Use “undelete” to recover deleted files from exfat partition WD hard drive after Virus attack,Bin clear,disk cleanup,Press shift del in error,permanently empty bin,shift delete ,accidentally deleted by way of a mistake.
Use “Full Scan” to Western Digital exfat file system recovery which may not found with “undelete” and “unformat” and “recover partition” after showing an error,display as raw file system,unformatted,unknown partition,unpartitioned,needs to be formatted.
Western Digital hard drive because the world’s leading manufacturers on the planet with branches or offices on five continents around the globe to supply users with storage products, WD has been dedicated to global computer system users complete storage solutions, and because the global memory industry pioneer and long-term leader, Western Digital provides user and the collection, management and employ digital information services organization with extensive experience.
exFAT allows individual files larger than 4 GiB, facilitating long continuous recording of HD video which may exceed a few GiB limit within just one hour. Current cameras using FAT32 will break the recording files into multiple segments of around 2 or 4 GiB. With the increase of capacity and the increase of internet data being transferred, the write operation needs to be made more effective. SDXC cards, running at UHS-I use a minimum guaranteed write speed of 10 MBps and exFAT plays an issue in achieving that throughput with the lowering of the file system overhead in cluster allocation. This is achieved with the introduction of an cluster bitmap and elimination (or reduction) of writes for the FAT table. One particular bit inside the directory record shows that the file is contiguous, telling the exFAT driver not to include fat deposits table. This optimization is analogous for an extent in other file systems, other than a couple of seconds applies to whole files, in contrast to contiguous elements of files.
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