How can I erase your hard drive?

6 This may happen when the computer is giving away if you want to make sure the new user will not have access to your files. It may also occur when recycling an old computer or hard drive to ensure that no one has access to sensitive documents. Or this may happen in the business environment where one employee is leaving and the new employee takes place to protect employees and companies' privacy. To understand why, it is important to understand how hard drives work, and most importantly, how the key or recycling baskets on the computer works. Many people think that by moving the file to the trash and erased, it has completely erased, but in fact it takes a little more than it erases the hard disk or anything.

hard drives consist of many data that are marked in different ways. Available files are marked on hard disk as used space, namelyOan that when new files are created or existing files are changed, none of these files will be accidentally rewritten. When you move the file to the trash or recycling and empty it, you tell your computer to change the way in which the hard disk space is marked. Data is not actually removed, but in the future new data can be rewritten. However, if no data overflows, it can be easily restored using special software. Although the parts of the files are rewritten, you can often get enough data to re -assemble a large part of the documents.

Therefore, completely erase your hard discusing not only to mark the hard disk sections as those that can be rewritten, but you have to completely rewrite them. One way to achieve this, without special tools, is the use of built -in disk tools in Windows, Mac OSX or Linux, for hard disk format. Although it is not complete, the full format will largely rewrite everything, ensuring a fair level of erase. This is often enough for people who want to pDilute your computers to charity, friend or recycle them and have no truly sensitive documents on them.

However, it may be important to ensure that it remains to be erased by the face of dedicated attempts to restore data when erased by the government. If you want to do it, you will need a special piece of software known as the Data Dumpet program or the disc program. This program overrides the entire hard drive again and again with completely random data, which ensures that the original does not remain almost anything. Different programs and standards differ in their degree of completeness, from medium to highly secure form. The most common standard used by the US government is the standard DOD 5220,22-M, which rewrite three times, first in each piece of unit, then 0s, and finally government code 246.