[SOLVED] Questions about commercial recovery software

Nov 20, 2018
5
0
10
Hi, have a couple questions regarding commercial recovery software, I.e. recuva, easeus. First question is, when it looks at whether a deleted file has been overwritten, does the whole file have to be overwritten for it to be unrecoverable, or if even a couple of byte is overwritten, does that make it unrecoverable? Second question is, can recuva etc.. look at data within bad sectors on a drive? Say that a few byte of a file was in a bad sector, would the software be able to see those bytes? Thanks.
 
Solution
A drive can't read bad sectors, so any software also can't see data in the bad sectors. How well software can get back a file that had some data wiped depends on the file type. For something like a video or audio file, you may get some image/audio but it may be corrupt or missing sections. For something like a database file, even if part of the file is not there it is not likely to open at all.
A drive can't read bad sectors, so any software also can't see data in the bad sectors. How well software can get back a file that had some data wiped depends on the file type. For something like a video or audio file, you may get some image/audio but it may be corrupt or missing sections. For something like a database file, even if part of the file is not there it is not likely to open at all.
 
Solution