Turn on your computer or restart it. Immediately press and hold the Command and R keys on the keyboard until the Apple logo appears. Once it does, release the keys. Your Mac will boot into a special recovery menu. Select the Disk Utility option from the menu.
Choose your storage drive and then click the Erase button. Click Security Options. Google enables encryption in ChromeOS by default, and the reset process is straightforward:. Open Settings. Type Powerwash into the search bar. Click Reset. Click Restart. Click Powerwash and then Continue. Smartphones and tablets. Tap General. Tap Reset. Tap Erase All Content and Settings. When you empty files from the trash or recycle bin, the file name or the reference to the deleted file is erased.
The computer can no longer see the file. This means the space the file took up on the laptop or PC is no longer reserved for that file. But the file is still in the hard drive. It will stay in the hard drive until its location is given up for a new file to be stored in that exact location.
Data recovery software is capable of rebuilding the file header. This makes it possible for the computer to see the file again. When your files are not deleted completely from the hard drive, cybercriminals can run data recovery software to access your deleted files.
Law enforcement agencies use data recovery software to access deleted files from confiscated computers. Cybercriminals can use the same tools and techniques to commit identity theft. Special software programs can permanently erase your hard drive. Similarly, no one else will be able to use data recovery software to recover your files. Most programs run a low-level format that overwrites all the deleted files with zeros and other incomprehensible data.
This makes it impossible for data recovery software to recover the files. This includes all personal files, operating systems, and installed programs.
Most products offer proof of erasure. Some even provide information about what was done to the drive and its data. This helps when wiping a company laptop or PC. If you want to double-ensure your hard drive is wiped, you can take additional measures. For instance, you can physically wipe the drive. Just remove your hard drive and take a rare earth magnet to it.
Another option? Physically dismantle it with a screwdriver. A rare earth magnet, like the neodymium magnet, can be used to deform the metal plates in the hard disk. There is legislation in place that mandates organizations, public agencies, banks, advocates, etc protect an individual's information.
Personal information includes name, social security number, driver's license number, credit card number, financial information, patient information, consumer's personal financial data. Penalties for non-compliance can have serious consequences, identity theft, exorbitant law suites, even criminal prosecution.
You need to make sure you comply with this legislation and safely erase your hard disks before giving them away. Imagine you are a company who wants to re-sell or give away some computers. What happens if the new owner is able to see all your customer data? What happens if a hospital gives their old computers without securely deleting them first and the patient information falls into the wrong hands?
An easy way a thief can steal identities is by obtaining a victim's social security number. This allows access to important information such as financial accounts, credit reports. Instead, NTFS the file system used by Windows PCs just hides the data from immediate view, leaving it to be overwritten when a new file takes up residence on the drive.
To truly destroy the data on your storage device you need to take more drastic and time-consuming measures to overwrite your drive space with ones and zeroes. Different technology and scenarios call for different tools. Best of all, almost every solution discussed here is free. Back up your data! This is a one-way street to data oblivion. If the battery gets spent and the power goes out in the middle of a disk wipe it could spell disaster for the drive.
Each pass signifies a complete overwrite of the data.
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