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All the things above apply to conventional hard disks (HDDs). But if you need to erase file contents when deleting it, you can use a special eraser tool.Īs we have already said before, solid-state drives (SSDs) work in a different way. So in order to improve performance and reduce time needed to manage data, Windows and other operating systems do not erase data when deleting files. However, erasing this data will take a few minutes – just as long as the computer needs to write 10 GB of information to the hard disk. For example, it takes almost no time to remove 10 Gb of files. On the contrary, erasing file info from the disk surface by overwriting it is going to take much longer. Then why doesn’t your computer erase deleted files just as you remove them? Removing the file label and marking this disk space as free is a very quick operation. Programs to Clean Your Hard Disk and Registry from Junk Files in Windows 10, 8, 7 💻🔥📁 Why removed files are not erased instantly

With all that in mind, remember that the principles behind solid-state drives are different from those on which conventional hard disks are based. If the data of such deleted file was overwritten partially, only a part of data will be recovered, which may render the recovered file to be damaged or bad. A data recovery tool can scan the hard disk, detect such data and recover the files.

That is why such deleted files are available for recovery until Windows overwrites them with new information. From the viewpoint of the file system, such files are no longer present on the hard disk, and such sectors are believed to be vacant. When you delete a file, Windows removes the label and marks the sectors where file data is located as free space. Every file and folder have this label that helps the operating system determine the beginning and the end of file. Windows tracks file location on the hard disk with a sort of labels. It is this peculiarity that lets these files to be recovered – by you, or by other people… If you are not cautious enough, the removed confidential files can be recovered by other people, and used for purposes you may not like. While files are just deleted from the hard disk in a conventional way, they don’t actually disappear – the information about these files remains on the hard disk even after you empty the Recycle Bin.

Why removed files are not erased instantly.

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