This means that you will probably have your financial information stored on the computer. These days, we use our computers for many different purposes, including Internet banking and online purchases. When you pass along your computer, hard drive included, you need to make absolutely sure that the disk is completely wiped of any sensitive information. One format or deletion is nothing like enough, however. Eventually, the deleted data will be overwritten so many times that it will become completely irretrievable. This means that other data can overwrite it in the future. When you delete a file or format your hard disk or any other kind of media, you're not actually deleting anything at all.Īll formatting a disk or deleting a file does is mark the previously occupied disk space as free space. In reality, however, things are a little bit different. Sure, you may format the hard disk, assuming that all of the data on it is deleted and that no one will be able to retrieve your data. When you are planning to sell your computer or pass it onto someone else, you might not think at first just how harmful that can be.
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