Although storage devices are becoming more reliable day by day, data loss is still common. Luckily, though, any lost information can be recovered with the help of data recovery. Data can be lost due to human error, viruses, malfunctions in software programs, power cut, failures in software and hardware malfunctions. The following points explain how data recovery works –
How Does Data Recovery Work?
Even when the data is lost, some information remains on the computer’s storage. A safe location can be used for recovering this data. In data recovery, it is important to remember that once overwritten, data cannot be recovered. Thus, until the lost file is recovered, nothing should be written on the storage. In data recovery, a backup is made of all the files and then the files that were not backed up are retrieved from the disk where they still remain. The chances of success change from situation to situation but mostly, a great part of the lost data is recovered.
How is Data Lost?
File format issues, file system damage, loss of partition information and storage failure can cause data loss. When a file is deleted, the OS tries to free up storage space for new files. However, this space is not cleaned out from the computer instantly because of performance reasons. It remains until a new file needs to be saved. Windows FAT destroy file allocation and keep the file’s beginning. NTFS marks the space as unused and deletes its records in the directory. Unix/Linux systems set the disk as free and destroy file descriptor.
What Technology Is Used In Data Recovery?
Sometimes, parts of the hard disk are replaced for taking care of physical damage related data loss. The logical damage is sorted out by disk-imaging technology which recovers the hardware surface’s readable bits. Then this image is saved on another medium for analyzing the amount of logical damage and the requirement of reconstructing the file system. Data recovery software programs are often used for this purpose.
How Can A Professional Technician Help?
Since data recovery is overly complicated, the chances of the lost data getting recovered are infinitely increased when a trained technician with state-of-the-art software and imaging programs is attempting it. Sometimes software programs fail to find the allocation and other methods have to be used for recovering the file. A trained professional has experience with this and can be helpful. Our technicians at CyberCall Computer Repair Bristol have the latest technologies in data recovery and can help with any type of data, from flash drive to RAID.
Recovering overwritten data from old hard disks and diskettes was possible but in modern storage mediums, such a thing is impossible. 100% recovery without proper backup is a myth but if someone knows what they are doing, they can recover a lot of data.