How to delete data from a hard drive permanently
Even if you delete a file from the Recycle Bin, the file is not deleted from the hard drive permanently. This happens only when the portion of the hard disk occupied by that file is overwritten by new data, rather overwritten not just once but several times.
Even formatting the hard disk is sufficient for a thorough cleaning. With special programs, you can recover files that were believed to have permanently deleted. But there are so many programs, called ” data shredder “, which allow to totally eliminate these files so as not to leave any trace, an operation recommended if you intend to give away or throw a computer.
1.) One of these is Moo0 File Shhredder. It is a free program, available and supported by Windows 8, which allows you to delete files private or secret and definitely not in the traditional way prepared by Windows. Its use is very simple: just drag and drop files or folders into the window of the software and choose the level of effectiveness (currently, there are four levels: the less efficient but faster, the more effective but slower).
2.) If you intend to remove all traces of previously deleted files, you can rely on the program free Sure Delete. In addition to permanently delete files, free Sure Delete unnecessary data from the hard drive and the residual function Disk Cleaner. With Sure Delete you can either remove all traces of previously deleted files with the function SD Disk, both securely delete files with additional function SD File.
3.) Apple introduced OS X 10.3 from a safe means of disposal that makes use of erase cycles. So Mac users can rest easy. They can take an extra precaution by using the program Permanent Eraser, which further intensifies the process.
4.) Those who use Linux as the operating system, can install the Nautilus. Clicking the right button in the window of Nautilus, we will notice the command ” wipe “. Applying this command to a file or folder, we will eliminate them permanently.
5.) Finally, for smartphones equipped with the Android operating system, the easiest method is ShreDroid materials come from the app, directly downloadable from Google Play. It is a very useful tool that, similar to PC programs seen above, repeatedly overwrites deleted files to make them unrecoverable.
