Hard drive overwrite
In general, overwrite is a term used to describe when new information replaces old information or data. Hard drive overwrite is to record or copy new data over existing data, as in when a file or directory is updated, and data that is overwritten cannot be retrieved. Some users delete old files or format partitions to get more black space to store new data. They think the new data will overwrite hard drive, and the old data cannot be retrieved. However, it just deletes the data on the hard drive, not erase the data from the hard drive. Which means if you take some actions, like make use of some data recovery tool, the deleted files or data will be recovered. Furthermore, hard drive overwrite may decrease its performance. Because no matter HDD (hard disk drive) or SSD (solid state drive), the lifespan has a limit. If your hard drive performances not well, you can erase data from the hard drive to restore it to factory settings and get its well performance back.
Wipe hard drive clean with Windows Diskpart.exe
Windows Diskpart.exe can help you clean hard drive with command line. If you are familiar with Diskpart command, you can make use of it to clean hard drive in command prompt.
>. Click Start, typecmd in the search box. Right click the program and select Run as Administrator. (press Win + R and type cmd in the box to open command prompt if you are using Windows 10).
>. In the command prompt, type diskpart and press Enter. It will get you into diskpart command prompt.
>. In the diskpart command prompt, type list disk, pressEnter. This command will list all hard drive(s) in the prompt.
>. Here you need to select the disk that needs to be cleaned. Type select disk n (n refers the disk number), press Enter.
* You can see the hard drive state is online or offline. If it is offline, you need to type “online” before cleaning it.
>. Typeclean orclean all to erase all data from the hard drive.
Using Windows Diskpart to wipe hard drive is a nice way. But it is more suitable for those people who know computer a lot. If you do not know much about command line, you may meet a damage because the operations on Diskpart is irrevocable. If you need a more securely way to wipe hard drive, you can find a third party software to do it.
Erase hard drive securely with AOMEI Partition Assistant
AOMEI Partition Assistant Pro is such a great hard drive eraser that provides you different wiping ways for HDD and SSD. The Wipe Hard Drive is designed for erasing data from HDD, while the Secure Erase SSD is designed for erasing SSD securely. You know that the SSD is different from HDD, if you use the way wiping hard drive to wipe SSD, the SSD would be hurt. Thus, the AOMEI Partition Assistant should be the best software for hard drive overwrite.
If you are using HDD:
If you are planning to wipe HDD, you should use Wipe Hard Drive utility of AOMEI Partition Assistant.
Install and run AOMEI Partition Assistant to your computer installed with Windows 10/8/7. it will show you all disk(s) on your computer in the main interface. Right click the hard drive you need to wipe, select Wipe Hard Drive.
In the following window, it will remind you that the operating will delete all partitions and erase all data on the selected hard drive by overwriting it. Specify the number of times to wipe the hard drive.
Finally, you will back to the main interface. Don’t forget to click Apply at the toolbar. Confirm the information in Pending Operations, click Proceed to execute the operation.
Those are the steps that AOMEI Partition Assistant wipe hard drive via overwriting hard drive. Then, you can read about what should you do if you are using SSD.
If you are using SSD:
The Secure Erase SSD utility helps you reset your SSD to the factory settings and restore it to its peak performance. With this way, you will not erase all data on the solid state drive without hurting its lifespan. However, AOMEI Partition Assistant Secure Erase SSD only supported by Windows 7 operating system at present. Which means this feature can only work on Windows 7 environment, and you need to connect your SSD to a Windows 7 computer first.
Step1. Connect your SSD to your Windows 7 computer. Launch AOMEI Partition Assistant. Right click the SSD that needs to be erased, select Secure Erase SSD.
Step2. Then, AOMEI Partition Assistant will give you a secure erase notice, read it first. And then, click Next.
Step3. Here you need to choose the SSD you want to securely erase in the Disk list, here is Samsung SSD. Click Next.
Step4. You may meet the problem that the SSD is in a frozen state. If so, you cannot secure erase the SSD unless you relieved the frozen state. You can follow the link “here” in the following screenshot to perform hot swap so that you can relieve the frozen state of the SSD.
Step5. After relieving the frozen state, click Next to continue. Wait till the progress finished.
Hard drive overwrite isn’t a difficult thing. The difficulty is how to erase the hard drive without hurting it. Fortunately, the AOMEI Partition Assistant can achieve that. Apart from secure erase hard drive, AOMEI Partition Assistant supports more operations for how to manage hard drive well. For example, it allows you to initialize disk, format partition, delete partition, repartition hard drive if necessary, etc.