Restart your computer, but ensure the CD, DVD, or USB drive where you have your hard drive eraser is plugged into your PC. This is more useful if the program comes as a bootable tool as well. The next step is to erase the hard drive using a third-party program. You will now have a bootable version of the operating system. However, if you do not have a copy, you can download it online and activate it using your Windows Product Key, which is usually located on a sticker on your computer. You may have received this when you bought the computer. If you have a computer that runs on Windows 7, you should have your copy of your operating system. After deleting everything, you should reformat your drive and finally, reinstall your operating system. To return to this state, you will need to first back up your data, especially if the files are really important to you. When you bought your computer, the hard drive is brand new, without any file in it except for the applications that are pre-installed in it. The good news is there are ways on how you can wipe your computer before you dispose it or sell it. As a matter of fact, anyone who has a data recovery program can recover the files you have removed, even if your Recycle Bin is empty. The problem with this is that it does not guarantee you have deleted all the sensitive files and data in your hard drive. To remove all your computer files, you should not just rely on the traditional “Send to Recycle Bin” routine. Many people make the mistake of being confident that their hard drives are completely wiped.
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