Step 1: Buy MiniTool Partition Wizard and launch it to get its main interface.
Here is a tutorial on data recovery with MiniTool Partition Wizard. MiniTool Partition Wizard is recommended because it's versed in this problem. Then, right click a partition and select Delete Volume to delete it.ĭata recovery and partition recovery often need the help of third-party software. Users should press "Windows + R" keys and type "diskmagmt.msc" in Run window to open Disk Management. However, deleting a partition is more complicated. Users can recover deleted files, and at the same time, they can also retrieve deleted partitions.Īs we all know, users can right click on a file and select Delete to remove a file. And the space where the file is stored is marked to allow new data to be input.īut actually, the original files still exist on the hard drive before they are overwritten by other data, which means that they can be easily recovered by software. The file index to file location on hard drive is removed so that the computer can't find the file. When files are deleted, they are just marked as such. But if users have emptied the Recycle Bin or deleted the file permanently, recovering the deleted files would take some efforts.
They can restore the file from recycle bin easily. When users delete a file on computer, maybe they just put the file into Recycle Bin. In other words, the data stored on the media won't be recovered by any software, but there is still possibility of recovering data in laboratory environment. This method is mainly applied on writable media to protect the confidentiality of information against data, disk, or file recovery utilities. The non-sensitive data will cover not only the logical storage location of a file, but also all addressable locations.
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Data Erasureĭata erasure (sometime referred to as data clearing or data wiping) will sanitize media by using software or hardware products to overwrite storage space on the media with non-sensitive data. In addition, although degaussing will not cause damage to media, it will also make the media lose economic value and unusable. Modern high-density disk degaussing requires higher magnetic field, in other words, more bulk and expensive degauss equipment, which also means higher cost. However, degaussing work of modern high-density disk is more difficult than that of older disks like magnetic tape and floppy disk. And it also makes data unrecoverable even in laboratory environment. This method is relatively efficient in purging diskettes, damaged or inoperative media, and media with large storage capacity. Degaussingĭegaussing is a process of exposing the magnetic media to a strong magnetic field of a degausser to disrupt the recorded magnetic domain. Besides, if a complete destruction is not accomplished, there is still possibility of recovering data in laboratory environment. Besides, when the media is disintegrated or shredded, the residues must be reduced to edge dimensions of 5 mm and surface area of 25 mm 2.īecause physical destruction will destroy media, it is not recommended except that the media is not needed anymore. The physical destruction methods include disintegration, pulverization, melting, incineration, and shredding. It will completely destroy the media and make the data stored on the media unrecoverable even in a laboratory environment. Physical destruction is adopted on the condition that the information has high security categorization. Otherwise, data sanitization should be taken to protect data privacy.ĭata sanitization is achieved through three major methods: physical destruction, degaussing, and data erasure. If information disclosure would have no impact on organizational mission, or would not result in damage to organizational assets, or financial loss or harm to any individuals, data disposal without sanitization could be considered.
ATA Security Erasure and Cryptographic Erasureĭata sanitization is defined as a process of deliberately, permanently, and irreversibly removing or destroying the data stored on a memory device (including HHD, SSD, CD/DVD, USB, mobile devices, etc.), which is used to make data unrecoverable to avoid privacy leak.
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