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2. Trim (computing) - Wikipedia

   en.wikipedia.org/wiki/Trim_(computing)

   Regardless of operating system, the drive can detect when the computer writes all zeros to a block, and de-allocate (trim) that block instead of recording the block of zeros. If reading a de-allocated block always returns zeros, this shortcut is transparent to the user, except for faster writing (and reading) of all-zero blocks, in addition to ...

3. Disk formatting - Wikipedia

   en.wikipedia.org/wiki/Disk_formatting

   NVMe drives have a standard method of formatting, available in, for example, the Linux command-line program nvme format. Sector size change and secure erase options are available. [23] Note that NVMe drives are generally solid-state, making this "track" distinction useless. Seagate Technology drives offer a TTL serial debugging console. [24]

4. Device configuration overlay - Wikipedia

   en.wikipedia.org/wiki/Device_configuration_overlay

   Device configuration overlay (DCO) is a hidden area on many of today's hard disk drives (HDDs). Usually when information is stored in either the DCO or host protected area (HPA), it is not accessible by the BIOS (or UEFI), OS, or the user.

5. Factory reset - Wikipedia

   en.wikipedia.org/wiki/Factory_reset

   This is an accepted version of this page This is the latest accepted revision, reviewed on 2 December 2024. Restoring the software of an electronic device to its original state For the Tilian Pearson album, see Factory Reset (album). A factory reset, also known as hard reset or master reset, is a software restore of an electronic device to its original system state by erasing all data ...

6. List of data-erasing software - Wikipedia

   en.wikipedia.org/wiki/List_of_data-erasing_software

   Supported wipe methods Reports BleachBit: Andrew Ziem and contributors GNU General Public License: Windows, Linux: Yes external [1] on screen, Copy and Paste-able CCleaner: Piriform: Trialware: Windows, OS X: Yes external [2]? Darik's Boot and Nuke (DBAN) Darik Horn GNU General Public License: OS independent, based on Linux: No external [3]? dd ...

7. Non-volatile memory - Wikipedia

   en.wikipedia.org/wiki/Non-volatile_memory

   Non-volatile memory (NVM) or non-volatile storage is a type of computer memory that can retain stored information even after power is removed. In contrast, volatile memory needs constant power in order to retain data.

8. Gutmann method - Wikipedia

   en.wikipedia.org/wiki/Gutmann_method

   The Gutmann method is an algorithm for securely erasing the contents of computer hard disk drives, such as files.Devised by Peter Gutmann and Colin Plumb and presented in the paper Secure Deletion of Data from Magnetic and Solid-State Memory in July 1996, it involved writing a series of 35 patterns over the region to be erased.

9. Data erasure - Wikipedia

   en.wikipedia.org/wiki/Data_erasure

   Drives with this capability are known as self-encrypting drives ; they are present on most modern enterprise-level laptops and are increasingly used in the enterprise to protect the data. Changing the encryption key renders inaccessible all data stored on a SED, which is an easy and very fast method for achieving a 100% data erasure.