You can attempt to extract files from a dead hard drive if it fails unexpectedly, although it’s always better to backup your most important files instead. ![]() It’s pretty difficult to retrieve files from a damaged or destroyed hard drive, but you can certainly try. Whether you zero fill or drill, knowing how to safely destroy a hard drive can give you peace of mind, ensuring your data is safe from being stolen by others. If you haven’t got a plan in mind for your unused storage, you need one. You can then use it again or dispose of it, depending on your own needs. In the example above we instructed dd to read from the /dev/sda device, and we also changed the block size to 1M, which can give us better performance in such situation. Once shred finishes performing a zero fill format on your drive, it will be empty-period. Say for example we want to create a clone of the entire /dev/sda block device, we could write: sudo dd if/dev/sda bs1M gzip -c -9 > sda.dd.gz. It will also depend on the system resources available on your PC, as well as your hard drive speed. The larger the drive, the longer the length of time it will take for the process to complete. It will take some time for the shred command to zero your hard drive, especially if you’re running multiple passes. The rest of this section will assume you’re using a USB drive for your Ubuntu live environment. If you’re using a USB drive, download and install balenaEtcher to allow you to do this on Linux, macOS, or Windows.
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