Windows 8 and 8.1 Forums


SSD File "Eraser" Needed ??

  1. #1


    Posts : 31
    Windows 8.1

    SSD File "Eraser" Needed ??


    Greetings,

    I have a new HP Envy 13 + screen tablet/notebook. Its similar to the MS Surface with a magnetically attached thin Bluetooth keyboard. It has the Intel 5th generation M (mobile) processor (1.1/1.3). It also has SSD. Does Windows treat SSD like magnetic drives ?? Does it simply "not see" a file/whatever that has been deleted ..... leaving the file untouched ? If so, does that mean I will have to use one of the programs like "Erasure" to overwrite files once they are "deleted" for security reasons ?
    Thanks .....

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  2. #2


    Posts : 31
    Windows 8.1


    PS : I might as well ask if these storage drives have to be "defrag'd" like a magnetic drive ?
      My System SpecsSystem Spec

  3. #3


    Harrisonburg, Va.
    Posts : 10,488
    Windows 8.1.1 Pro with Media Center


    CCleaner has a "wipe" option---

    Click image for larger version
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  4. #4


    Posts : 454
    Windows 8.1 Pro with Media Center


    You can't "secure erase" a file on an SSD as you can on a HD. However, if TRIM is working, and it should be in Windows 7 and later, the effect is a secure erase. As for wiping the whole drive, use the drive's Secure Erase feature, or if unavailable, see:

    https://www.schneier.com/blog/archiv...g_data_fr.html

    Or if you're really concerned about this, use FDE like BitLocker.
      My System SpecsSystem Spec

  5. #5


    I don't see why files could not be secure erased/wiped on SSD same as on HDD. Those programs just overwrite files with zeroes or random bits and some you can set to do it multiple times. I tested AVG antivirus and it's secure delete and nothing was able to find erased files. Now maybe CIA or NSA or FBI would be able to do something but normal programs no.
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  6. #6


    Harrisonburg, Va.
    Posts : 10,488
    Windows 8.1.1 Pro with Media Center


    If you want to be extreme you could overwrite 35 times.

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  7. #7



    Trying to Sith things out
    Bamberg Germany
    Posts : 2,290
    Windows 10 Pro 64 bit


    Quote Originally Posted by rrecroc View Post
    Greetings,

    I have a new HP Envy 13 + screen tablet/notebook. Its similar to the MS Surface with a magnetically attached thin Bluetooth keyboard. It has the Intel 5th generation M (mobile) processor (1.1/1.3). It also has SSD. Does Windows treat SSD like magnetic drives ?? Does it simply "not see" a file/whatever that has been deleted ..... leaving the file untouched ? If so, does that mean I will have to use one of the programs like "Erasure" to overwrite files once they are "deleted" for security reasons ?
    Thanks .....
    When something is deleted(not in recycle) it's gone. From Wikipedia:
    A Trim command (commonly typeset as TRIM) allows an operating system to inform a solid-state drive (SSD) which blocks of data are no longer considered in use and can be wiped internally.[1]
    Trim was introduced soon after SSDs started to become an affordable alternative to traditional hard disks. Because low-level operation of SSDs differs significantly from hard drives, the typical way in which operating systems handle operations like deletes and formats resulted in unanticipated progressive performance degradation of write operations on SSDs.[2] Trimming enables the SSD to handle garbage collection overhead, which would otherwise significantly slow down future write operations to the involved blocks, in advance.[3]
    Although tools to "reset" some drives to a fresh state were already available before the introduction of trimming, they also delete all data on the drive, which makes them impractical to use for ongoing optimization.[4] By 2014 many SSDs had internal idle/background garbage collection mechanisms that work independently of trimming; although this successfully maintains their performance even under operating systems that do not support Trim, it has the associated drawbacks of increased write amplification and wear of the flash cells.[5]
    Using a wiper of erasure only causes excessive writes and write magnification(blocks being written and moved around) and reduces the nand cells write life.
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  8. #8


    Trim and GC are working delayed action, days may pass until data is erased that way, any other erasing works instantaneously. Number of writes is not much of a concern with newer SSD, they can take a lot of punishment.
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  9. #9



    Trying to Sith things out
    Bamberg Germany
    Posts : 2,290
    Windows 10 Pro 64 bit


    Quote Originally Posted by CountMike View Post
    Trim and GC are working delayed action, days may pass until data is erased that way, any other erasing works instantaneously. Number of writes is not much of a concern with newer SSD, they can take a lot of punishment.
    Trim can be activated using "Defragment and optimize Drives" or "Performance Optimization" on Samsung Magician or whatever software came with the SSD. Also "Unnecessary Writes" bad for both HDDs & SSDs. This B.S. with 35 writes isn't any better as once or twice(over written is over written). Just more scare ware sales pitch.
    HTG Explains: Why You Only Have to Wipe a Disk Once to Erase It
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  10. #10


    Yellow Belly
    Posts : 178
    Windows 8.1 with Bing x64


    Quote Originally Posted by rrecroc View Post
    PS : I might as well ask if these storage drives have to be "defrag'd" like a magnetic drive ?
    I don't think there's any point. because there is no physical head movement involved, like in a conventional HD, so the CPU can read and write anywhere on the SSD in the same amount of time. In view of this, defragging actually shortens the life more for no net real benefit. Theres's no head mechanism to wear out either.
      My System SpecsSystem Spec

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