RELATEED usb data recovery question
Do need help recover lost file on the usb drive
close usb
256GB memory card data recovery,recover data from 256GB memo
  • Author:urecovery
  • Publish Time:2018-09-25 09:04

256GB memory card data recovery software
256GB memory card data recovery software is a very comprehensive software for file recovery. It supports NTFS partition, FAT and FAT32 partitions used by Microsoft operating system, and data recovery of exFAT partition. It can recover files deleted by the recycle bin and be Shift. +Delete keys directly delete files and directories, quickly formatted partitions, fully formatted partitions, partition table corruption and partition data that drive letters cannot be opened normally, partitions deleted in disk management, hard disks that have been repartitioned Data, files lost when partitioned by third-party software, etc. The recovery software scans the data in a read-only mode, and builds the original directory file name structure in the memory without destroying the source disk content.
Supports file recovery for NTFS partitions, FAT32 partitions, FAT partitions, and exFAT partitions
With anti-delete, anti-format, partition recovery, advanced mode and other scanning functions, you can recover the most common data loss situation
Built-in function to restore by file header, you can scan the file name to record the damaged file, sort it by file type and automatically name it after scanning, support Word document (DOC/DOCX), Excel form (XLS/ XLSX), PowerPoint presentation (PPT/PPTX), photo files (JPG/NEF/CR2/X3F/SR2/PNG), video files (3GP/MP4/ RMVB/MOV/MPG/ MOD/FLV), compressed package files (ZIP/RAR), etc. File format.
256GB memory card software function
First, the commonly used data recovery function
Applicable to data recovery failures: accidental deletion, misformatting, file system corruption, misinstallation of the system, Ghost partitions, and partition coverage.
Full Scan: Mainly used for file system corruption, scan lost partition failure, and other data recovery effects are not good, full scan can fictitate partition information and improve the success rate of data recovery.
Partition scan: mainly used for partition data deletion, partitioned file system can not be opened, partition prompt format, partition formatted, etc., use partition scan to recover data.
Second, the storage medium mirror
All or part of the storage medium can be mirrored, which can be used for backup of the original data before data backup or data recovery. The software can open the image file and interpret it as a disk.
Third, extract free space
Extract the unused storage space of the partition for professional data recovery engineers to use for further data recovery operations.
Note editing
In the process of data recovery, it is most afraid of being mistakenly operated and causing secondary damage, which makes the recovery difficulty steeply. During the data recovery process, it is forbidden to write new data to the source disk.
Do not do DskChk disk check. After the error occurs in the general file system, when the system boots into the startup screen, it will automatically prompt whether it needs to do the disk check. By default, the DskChk disk check operation starts after 10 seconds. This operation can sometimes repair some small damaged directory files, but many times it will Destroyed the data. It cannot be fixed because of the complicated directory structure. After the repair fails, a directory such as FOUND.000 is formed in the root directory, and there are a large number of files with a .CHK extension. Sometimes these files can be restored by changing their names. Sometimes they are finished, especially the FAT32 partition or the larger database files of NTFS.
Do not format the partition again. After the user formats the partition for the first time, the partition type changes, resulting in data loss, such as the original FAT32 partition into an NTFS partition, or the original NTFS partition formatted into a FAT32 partition. After the data is lost, the original directory format cannot be scanned by the general software, and the partition is formatted again to the original type, and then the data is scanned. We pointed out that the original partition type of the second format is a serious error operation, it is likely to destroy some large files that could be recovered, resulting in permanent unrecoverable.
Do not restore data directly to the source disk. After many ordinary customers delete files, the files recovered by the general software are directly restored to the original directory, so the possibility of destroying the original data is very large, so it is strictly prohibited to directly restore to the source disk.
Do not rebuild the partition operation. After the partition table is destroyed or the partition is deleted, if the partition table reconstruction tool is directly used to directly create or format the partition, it is easy to destroy the important area such as the file allocation table (FAT) or the file record table (MFT) of the original partition, which makes the recovery difficult. greatly increase. In the practice of recovery, we encountered many times after the customer destroyed the partition table. First, we tried several partition tools and could not recover the data. Then we tried to find a professional help. As a result, we found that after using various partition tools, Some important directory files are destroyed, resulting in incomplete file directory recovery, and some large files cannot be recovered. It is a pity that these files can be fully recovered in the case of the initial partition loss described by the customer. Professional data recovery personnel will first locate the specific location of the partition (logical sector number) before rebuilding the partition table, and then use the sector view tool to check several important parameters of the partition such as DBR/FAT/FDT/MFT, etc. Modify the partition table, and after modifying the partition table, the system will be prohibited from doing dskchk to destroy the partition directory during the system startup process to ensure that the data will not be destroyed.
Do not redo the array after the array is lost. In the practice of saving server arrays, we encountered some network management forces forced the array to go online after the server crashed, even if the dropped hard disk is forced to go online, or directly rebuilding. These operations are very dangerous, and any operation written to the disk can destroy the data.
After the data is lost, it is strictly forbidden to save new files to the partition that needs to be restored. It is best to turn off the download tool, not to go online, unnecessary applications are turned off, and then scan to recover data. If the partition to be restored is the system partition, if the data file is deleted, if there is no important data such as database in the computer, we suggest that you power off the computer directly, and then hang the hard disk to another computer to recover, because When the computer is turned off or turned on, the operating system will write data to the system disk, which may destroy the data.
Do not cut the file. We often encounter customers cutting a directory to another disk, the middle of the error, the source disk directory is not, the target disk is not copied into the data. This seems to be a system bug that occasionally appears. Therefore, we recommend that if the data is important, then copy the data to the target disk first, delete the directory file in the source disk after no problem, and do not save the data.
There are a lot of partitions in the directory file, don't do defragmentation directly. Because the disk defragmentation process may be wrong, it is difficult to recover if the data is wrong. We recommend copying the data to another disk, formatting the disk to be defragmented, and then copying back the data.
Do not use third-party tools to resize the partition. It is also very easy to make mistakes in the process of adjusting the partition size (such as power failure, etc.), and it is difficult to recover if an error occurs, because the data is moved to cover and the damage is very serious. It is recommended to back up the data before repartitioning, and then use Windows' own disk management to partition, which is more secure.
Regularly back up your data to ensure data security. It's best to make a disk backup, which is more secure than having a hard disk.
Successful knowledge editor
The recovery rate after data loss is different under different circumstances.
FAT or FAT32 partition, delete or format, relatively large files or often edit modified files, the recovery success rate is lower, such as frequently edited XLS or CDR files are difficult to complete recovery.
Files that are not moved after they are copied in, the recovery success rate is relatively high, such as PDF or JPG, MPG and other files that are not frequently modified, the recovery rate is still relatively high. This is because the FAT and FAT32 partitions use the file allocation table to record the cluster chain fragment information of each file. The deleted or formatted cluster chain fragment information is emptied, and those files that are frequently edited and modified are dynamically grown due to their file length. In the file system, it is generally not stored continuously, so the file fragmentation information cannot be recovered, and the file recovery is incomplete.
The recovery probability of NTFS partitions is relatively high, and most of them can be completely recovered after deletion or formatting. Some files can't be recovered sometimes. For example, if the file length is very large or the file is used for a long time in editing, this file will form a lot of fragmented information. After deleting the file, the file cannot know the file length and it is difficult to recover. For example, Some database files that have been used for many years, the length of the file scanned by the data recovery software after deletion is 0, and cannot be recovered. Regular disk defragmentation can reduce this situation, but direct disk defragmentation is also risky, please refer to the above issues.
Repartition or delete partition or partition table destruction, generally the latter partition can be fully recovered, the lower the possibility that the lower partition is destroyed, so the important data is best placed in the lower partition, not in C , D disk.
Files deleted by the recycle bin sometimes cannot be found. Under NTFS, the file name deleted from the recycle bin will be automatically changed to a name such as De001.doc by the system, and the original file name will be destroyed. When your data is lost, you can't directly find the file name. Remember to skip these files that have been renamed by the system. Direct Shift+Del delete will not destroy the file name.
Tips editor
After the data is lost, do not save new files to the disk to be restored.
If the data to be recovered is on the C drive, and the system is broken and the system cannot be started, then do not try to reinstall the system or restore the system. You should remove the hard drive and hang it on another computer to recover from the disk.
After the file is lost, don't open this disk to view any files, because the browser will automatically destroy the data when it previews the image.
When the partition is opened and prompted to be formatted, the drive letter cannot be formatted. If the format is determined, the effect of file recovery will be destroyed.
U disk becomes RAW format can not be opened, can not be formatted or the production tool initializes the U disk, otherwise it will destroy the data.
After the file is deleted, the scanned file can be restored to another drive letter.
After only one disk is formatted, the disk size does not change, and the data can be restored to another disk. If the size of the partition changes, it must be restored to another physical hard disk.
After re-partitioning or formatting multiple partitions on the same hard disk, you must restore to another physical hard disk and cannot restore to another partition in the same hard disk.
After waiting for the data to be restored to another disk or hard disk, you should open the file and check it carefully. You can restore it to the original disk. You can copy it back to the source disk. If you can't restore a part, you can copy it back. Copying the data to the source disk will affect it. One time data recovery.
If there is not another large enough disk to store data, and there are conditions for LAN networking, then you can open a shared directory with writable permissions on other computers and restore it to the network neighbor shared directory.