Even when the program effectively wipes a file by overwriting it many times, a copy of that file or data may be saved in a swap file, in system log data or in temporary files. It is clear that in the second case, the disk is cleared, and in general, this method will be preferable if warranty is needed.

Software designed to reliably delete information is divided into two large classes, based on the processing of the file system or directly on the disk. However, as will be noticed further, paid tools also find their buyers. It is developed many free tools doing for the user all that it is required. And for performance of corresponding operations at all it is not necessary to get expensive software that, undoubtedly, will please accountants and financiers. Naturally, demand generates supply, and so many tools have already been created to securely erase information from your drives.

Simply deleting data or formatting the drive partition is not enough – the units and zeros that make up the information do not disappear and are easy to recover with specialized tools. Any company wants to have confirmation that its confidential data will not fall into the wrong hands, and the home user should not leave traces of personal information and credit card transactions, as they can be used by criminals.īefore handing over your computer to outsiders, you should ensure that all data on your computer has been removed with the necessary security measures.

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