Logical damage or logical corruption is refers to drives or media which the error that cause the data loss is not a problem with the hardware and a software solution can recover the data. Software recovery varies on the issue but frequently is because of deleted files, lost partition tables or corrupt file systems, formatted drives, viruses. In the majority of these cases the data can be recovered.
What causes software data loss?
Deleting files accidentally is one of the biggest things I see. Users do not mean to delete a file and sometimes realize it right away or some times munch later. This typically users delete files or folders and then empty the recycle bin.
Viruses and malware or malicious software are accounting for an increase of data recoveries in the last few years. Malware is incredibly sophisticated and in cases like Cyptolocker will hold your data for ransom.
Other common issues are a partitioning error, a drive that was accidentally formatted, lost partition tables or corrupt file systems
What data is recoverable?
Typically all data is recoverable unless it is securely destroyed or overwritten. I can recover data from Windows, Mac, Linux, smart phones, tablets, USB flash drives, SSD, external hard drives, CD/DVDs, laptop and desktop computers and more. I also can recover from many file systems including NTFS, FAT, exFAT, HFS, HFS+, HFS and HFS+.
How do I know if I need a software recovery?
The hard drive or media will need a data recovery diagnostic for me to be able to tell for certain but I would estimate 50 percent of the disk recovery projects I receive can be repaired with software only. The remaining 50 percent have a hardware issues (hardware only or hardware combined with software).