When you ‘delete’ the file, the data is gone,not quite, when you delete a file, the operating system does not really remove the file from the disk, it only removes the reference of the file from the file system table. The file remains on the disk until another file is created over it, and even after that, it might be possible to recover data by studying the magnetic fields on the disk platter surface. Eraser is an advanced security tool for Windows which allows you to completely remove sensitive data from your hard drive by overwriting it several times with carefully selected patterns.Before the file is overwritten, anyone can easily retrieve it with a disk maintenance or an undelete utility.

There are several problems in secure file removal, mostly caused by the use of write cache, construction of the hard disk and the use of data encoding. These problems have been taken into consideration in Eraser and because of this intuitive design and a simple user interface, you can safely and easily erase private data from your hard drive. You can delete file permanently with the help of Eraser,this is a free software.

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