Sunday Sep 25, 2022

Data Recovery Software : Should You Trust Them?

Faced with a hard drive failure and the fear of losing the Data Recovery it contained, a user’s first instinct is naturally to turn to search engines . The results pages for his query then abound with links – often advertisements – offering Data Recovery software as the miracle solution. Yet, they are precisely the best way to permanently lose your files.

Storing Data Recovery on a hard drive , or an SSD is comparable to the operation of an encyclopedia. Each file corresponds to a page of your book, with its own characters (bytes) describing the information it contains. To access these pages, your encyclopedia (your hard drive) maintains a table of contents called an index. 

Each page number (the location of the file) is recorded there, in order to facilitate its reading. When the hard drive is instructed to delete a file, it doesn’t actually erase it, at least not immediately. Its location is first removed from the index , so that it no longer appears visibly to the user.

Even not visible, your Wikipedia data can therefore still be recovered . Problem: this will no longer necessarily be the case if your first instinct is to use Data Recovery software. We have indeed observed that a deindexed file does not disappear immediately. Its permanent deletion actually occurs by accumulating writes on the disk. 

Relatively randomly, your disk will simply write over existing data to take up unallocated space , causing the data to disappear. The best thing to do is therefore not to use the hard drive anymore ., in order to no longer allow any modification of files. By its action of research, and its maintenance in activity of the disk, the data recovery software can on the contrary accelerate the definitive loss of the data.

Katie Boyd

Back to Top