SSD is formatted twice and filled twice. Can i recover old deleted data?











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2
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I need to recover some old data which were stored on a drive. The data were deleted and the hard drive was formatted twice and filled twice with random data intentionally.



First the drive had a Windows 7 installed.



Then it was formatted twice with windows installer. After each format the space was filled with random video files.



Considering that when we delete something from a drive, only the index is deleted, the actual data is removed when new information is overwritten in that section of the drive.



The drive is an SSD.



Is there any possibility to find the old data?






data-recovery







share|improve this question
























  • Too many variables to answer: the only answer is "maybe"
    – schroeder♦
    20 hours ago






  • 1




    Possible duplicate of Is it enough to only wipe a flash drive once?
    – forest
    16 hours ago















up vote
2
down vote

favorite












I need to recover some old data which were stored on a drive. The data were deleted and the hard drive was formatted twice and filled twice with random data intentionally.



First the drive had a Windows 7 installed.



Then it was formatted twice with windows installer. After each format the space was filled with random video files.



Considering that when we delete something from a drive, only the index is deleted, the actual data is removed when new information is overwritten in that section of the drive.



The drive is an SSD.



Is there any possibility to find the old data?






data-recovery







share|improve this question
























  • Too many variables to answer: the only answer is "maybe"
    – schroeder♦
    20 hours ago






  • 1




    Possible duplicate of Is it enough to only wipe a flash drive once?
    – forest
    16 hours ago













up vote
2
down vote

favorite









up vote
2
down vote

favorite











I need to recover some old data which were stored on a drive. The data were deleted and the hard drive was formatted twice and filled twice with random data intentionally.



First the drive had a Windows 7 installed.



Then it was formatted twice with windows installer. After each format the space was filled with random video files.



Considering that when we delete something from a drive, only the index is deleted, the actual data is removed when new information is overwritten in that section of the drive.



The drive is an SSD.



Is there any possibility to find the old data?






data-recovery







share|improve this question















I need to recover some old data which were stored on a drive. The data were deleted and the hard drive was formatted twice and filled twice with random data intentionally.



First the drive had a Windows 7 installed.



Then it was formatted twice with windows installer. After each format the space was filled with random video files.



Considering that when we delete something from a drive, only the index is deleted, the actual data is removed when new information is overwritten in that section of the drive.



The drive is an SSD.



Is there any possibility to find the old data?






data-recovery




data-recovery






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 16 hours ago









forest

29.4k1491104




29.4k1491104










asked 20 hours ago









Vini7

564413




564413












  • Too many variables to answer: the only answer is "maybe"
    – schroeder♦
    20 hours ago






  • 1




    Possible duplicate of Is it enough to only wipe a flash drive once?
    – forest
    16 hours ago


















  • Too many variables to answer: the only answer is "maybe"
    – schroeder♦
    20 hours ago






  • 1




    Possible duplicate of Is it enough to only wipe a flash drive once?
    – forest
    16 hours ago
















Too many variables to answer: the only answer is "maybe"
– schroeder♦
20 hours ago




Too many variables to answer: the only answer is "maybe"
– schroeder♦
20 hours ago




1




1




Possible duplicate of Is it enough to only wipe a flash drive once?
– forest
16 hours ago




Possible duplicate of Is it enough to only wipe a flash drive once?
– forest
16 hours ago










4 Answers
4






active

oldest

votes

















up vote
5
down vote













Given the information that you have rewritten all ssd contents twice with true random data to the brim I'd say



No, you cannot recover any data from that disk.



This is the sane answer to give to people who lost data and e. g. show up in a data recovery shop.




If you want an academic answer weather or not it's possible at all then we're entering the hypothetical sphere of "given unlimited money and will - is it then possible?".
There are a lot of contributing factors (e. g. SSD Controller, state of dead cells, random data source, partition alignment, …).
But since you asked folks on the internet instead of physically shredding that disk I assume the disk holds no valuable information for any world power.




Please notice that the "Loose all data" option at your operating system installer does not perform a complete wipe of the disk.






share|improve this answer





















  • -1 This is wrong. Overprovisioning space makes it such that even full overwrites of an SSD will not actually wipe everything, as previous data will survive in regions that are not accessible to the OS.
    – forest
    16 hours ago








  • 4




    @forest , it may have a few percent of a few percent of the original disk’s image remaining in some of the blocks that were cycled through the wear leveling process, and some original data may still be occupying a bad block. But the chances of recovering a specific file intact are minuscule, especially if the desired file was larger than a single block.
    – John Deters
    13 hours ago






  • 1




    This is the hypothetical sphere we're entering. Having a "recall one seminal paper" doesn't directly translate to "there's a tool that makes data recovery possible for OP".
    – BlueWizard
    8 hours ago






  • 1




    @BlueWizard There are reasons to give an incomplete or abstract answer. The reason "because you asked people on the internet" is not one of them - especially not on a Q&A site on the internet.
    – Tom K.
    7 hours ago






  • 1




    Everybody dissatisifed with my answer is free to write their own answer. This comment section is not for extended discussions on alternative means of data revovery (not mentioned in my answer at all). I will not substantially rewrite an answer that has already received multiple positive responses: it would be unfair towards those people.
    – BlueWizard
    7 hours ago


















up vote
1
down vote













Is Data Remanence a Myth?



This is great coverage of the underlying question -- is data recoverable after a wipe. And while the preponderance of answers agree to be "no", the source documentation does also asert this but acquieses that bits of information are potentially recoverable.



So the answer to your question is "no", you cannot recover whole video files after a byte-by-byte overwrite. However, if the drive is known to contain text based data of significant interest where fragments may be enough to piece together a provactive picture, the answer becomes less definite. But, in those cases, you'd be talking in the realm of corporate espionage by the biggest companies in the world and/or nation-states.






share|improve this answer




























    up vote
    0
    down vote













    It depends on what you mean when you say “filled with random video files”.



    If the drive was completely filled to capacity with new data, it is highly unlikely to be retrievable.



    If the drive was filled to 50% of capacity with new data, the chances are better, but not great.






    share|improve this answer





















    • Filled completely ☹
      – Vini7
      20 hours ago






    • 1




      Video files usually have compression. Thus it's unlikely that the SSD controller compressed it before writing it. Some people try to "zero out" their SSDs and then are astonished at the speed on which the SSD is able to do so.
      – BlueWizard
      19 hours ago


















    up vote
    0
    down vote













    You said the hard drive is SSD. This is enough information to answer with a resounding no - even with a single pass write. Let me explain why ...



    With an SSD when you delete a file the operating system sends a TRIM command to the SSD and the SSD will delete said file completely. This happens immediately. Why? Because it's faster for the SSD/OS to work this way.



    You can read more about it here. Provided the OS issues the TRIM command and the SSD acts upon it then a 1 pass write is enough.



    Any more than that and you're just going to burn your SSD out quicker.






    share|improve this answer





















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      4 Answers
      4






      active

      oldest

      votes








      4 Answers
      4






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes








      up vote
      5
      down vote













      Given the information that you have rewritten all ssd contents twice with true random data to the brim I'd say



      No, you cannot recover any data from that disk.



      This is the sane answer to give to people who lost data and e. g. show up in a data recovery shop.




      If you want an academic answer weather or not it's possible at all then we're entering the hypothetical sphere of "given unlimited money and will - is it then possible?".
      There are a lot of contributing factors (e. g. SSD Controller, state of dead cells, random data source, partition alignment, …).
      But since you asked folks on the internet instead of physically shredding that disk I assume the disk holds no valuable information for any world power.




      Please notice that the "Loose all data" option at your operating system installer does not perform a complete wipe of the disk.






      share|improve this answer





















      • -1 This is wrong. Overprovisioning space makes it such that even full overwrites of an SSD will not actually wipe everything, as previous data will survive in regions that are not accessible to the OS.
        – forest
        16 hours ago








      • 4




        @forest , it may have a few percent of a few percent of the original disk’s image remaining in some of the blocks that were cycled through the wear leveling process, and some original data may still be occupying a bad block. But the chances of recovering a specific file intact are minuscule, especially if the desired file was larger than a single block.
        – John Deters
        13 hours ago






      • 1




        This is the hypothetical sphere we're entering. Having a "recall one seminal paper" doesn't directly translate to "there's a tool that makes data recovery possible for OP".
        – BlueWizard
        8 hours ago






      • 1




        @BlueWizard There are reasons to give an incomplete or abstract answer. The reason "because you asked people on the internet" is not one of them - especially not on a Q&A site on the internet.
        – Tom K.
        7 hours ago






      • 1




        Everybody dissatisifed with my answer is free to write their own answer. This comment section is not for extended discussions on alternative means of data revovery (not mentioned in my answer at all). I will not substantially rewrite an answer that has already received multiple positive responses: it would be unfair towards those people.
        – BlueWizard
        7 hours ago















      up vote
      5
      down vote













      Given the information that you have rewritten all ssd contents twice with true random data to the brim I'd say



      No, you cannot recover any data from that disk.



      This is the sane answer to give to people who lost data and e. g. show up in a data recovery shop.




      If you want an academic answer weather or not it's possible at all then we're entering the hypothetical sphere of "given unlimited money and will - is it then possible?".
      There are a lot of contributing factors (e. g. SSD Controller, state of dead cells, random data source, partition alignment, …).
      But since you asked folks on the internet instead of physically shredding that disk I assume the disk holds no valuable information for any world power.




      Please notice that the "Loose all data" option at your operating system installer does not perform a complete wipe of the disk.






      share|improve this answer





















      • -1 This is wrong. Overprovisioning space makes it such that even full overwrites of an SSD will not actually wipe everything, as previous data will survive in regions that are not accessible to the OS.
        – forest
        16 hours ago








      • 4




        @forest , it may have a few percent of a few percent of the original disk’s image remaining in some of the blocks that were cycled through the wear leveling process, and some original data may still be occupying a bad block. But the chances of recovering a specific file intact are minuscule, especially if the desired file was larger than a single block.
        – John Deters
        13 hours ago






      • 1




        This is the hypothetical sphere we're entering. Having a "recall one seminal paper" doesn't directly translate to "there's a tool that makes data recovery possible for OP".
        – BlueWizard
        8 hours ago






      • 1




        @BlueWizard There are reasons to give an incomplete or abstract answer. The reason "because you asked people on the internet" is not one of them - especially not on a Q&A site on the internet.
        – Tom K.
        7 hours ago






      • 1




        Everybody dissatisifed with my answer is free to write their own answer. This comment section is not for extended discussions on alternative means of data revovery (not mentioned in my answer at all). I will not substantially rewrite an answer that has already received multiple positive responses: it would be unfair towards those people.
        – BlueWizard
        7 hours ago













      up vote
      5
      down vote










      up vote
      5
      down vote









      Given the information that you have rewritten all ssd contents twice with true random data to the brim I'd say



      No, you cannot recover any data from that disk.



      This is the sane answer to give to people who lost data and e. g. show up in a data recovery shop.




      If you want an academic answer weather or not it's possible at all then we're entering the hypothetical sphere of "given unlimited money and will - is it then possible?".
      There are a lot of contributing factors (e. g. SSD Controller, state of dead cells, random data source, partition alignment, …).
      But since you asked folks on the internet instead of physically shredding that disk I assume the disk holds no valuable information for any world power.




      Please notice that the "Loose all data" option at your operating system installer does not perform a complete wipe of the disk.






      share|improve this answer












      Given the information that you have rewritten all ssd contents twice with true random data to the brim I'd say



      No, you cannot recover any data from that disk.



      This is the sane answer to give to people who lost data and e. g. show up in a data recovery shop.




      If you want an academic answer weather or not it's possible at all then we're entering the hypothetical sphere of "given unlimited money and will - is it then possible?".
      There are a lot of contributing factors (e. g. SSD Controller, state of dead cells, random data source, partition alignment, …).
      But since you asked folks on the internet instead of physically shredding that disk I assume the disk holds no valuable information for any world power.




      Please notice that the "Loose all data" option at your operating system installer does not perform a complete wipe of the disk.







      share|improve this answer












      share|improve this answer



      share|improve this answer










      answered 20 hours ago









      BlueWizard

      24718




      24718












      • -1 This is wrong. Overprovisioning space makes it such that even full overwrites of an SSD will not actually wipe everything, as previous data will survive in regions that are not accessible to the OS.
        – forest
        16 hours ago








      • 4




        @forest , it may have a few percent of a few percent of the original disk’s image remaining in some of the blocks that were cycled through the wear leveling process, and some original data may still be occupying a bad block. But the chances of recovering a specific file intact are minuscule, especially if the desired file was larger than a single block.
        – John Deters
        13 hours ago






      • 1




        This is the hypothetical sphere we're entering. Having a "recall one seminal paper" doesn't directly translate to "there's a tool that makes data recovery possible for OP".
        – BlueWizard
        8 hours ago






      • 1




        @BlueWizard There are reasons to give an incomplete or abstract answer. The reason "because you asked people on the internet" is not one of them - especially not on a Q&A site on the internet.
        – Tom K.
        7 hours ago






      • 1




        Everybody dissatisifed with my answer is free to write their own answer. This comment section is not for extended discussions on alternative means of data revovery (not mentioned in my answer at all). I will not substantially rewrite an answer that has already received multiple positive responses: it would be unfair towards those people.
        – BlueWizard
        7 hours ago


















      • -1 This is wrong. Overprovisioning space makes it such that even full overwrites of an SSD will not actually wipe everything, as previous data will survive in regions that are not accessible to the OS.
        – forest
        16 hours ago








      • 4




        @forest , it may have a few percent of a few percent of the original disk’s image remaining in some of the blocks that were cycled through the wear leveling process, and some original data may still be occupying a bad block. But the chances of recovering a specific file intact are minuscule, especially if the desired file was larger than a single block.
        – John Deters
        13 hours ago






      • 1




        This is the hypothetical sphere we're entering. Having a "recall one seminal paper" doesn't directly translate to "there's a tool that makes data recovery possible for OP".
        – BlueWizard
        8 hours ago






      • 1




        @BlueWizard There are reasons to give an incomplete or abstract answer. The reason "because you asked people on the internet" is not one of them - especially not on a Q&A site on the internet.
        – Tom K.
        7 hours ago






      • 1




        Everybody dissatisifed with my answer is free to write their own answer. This comment section is not for extended discussions on alternative means of data revovery (not mentioned in my answer at all). I will not substantially rewrite an answer that has already received multiple positive responses: it would be unfair towards those people.
        – BlueWizard
        7 hours ago
















      -1 This is wrong. Overprovisioning space makes it such that even full overwrites of an SSD will not actually wipe everything, as previous data will survive in regions that are not accessible to the OS.
      – forest
      16 hours ago






      -1 This is wrong. Overprovisioning space makes it such that even full overwrites of an SSD will not actually wipe everything, as previous data will survive in regions that are not accessible to the OS.
      – forest
      16 hours ago






      4




      4




      @forest , it may have a few percent of a few percent of the original disk’s image remaining in some of the blocks that were cycled through the wear leveling process, and some original data may still be occupying a bad block. But the chances of recovering a specific file intact are minuscule, especially if the desired file was larger than a single block.
      – John Deters
      13 hours ago




      @forest , it may have a few percent of a few percent of the original disk’s image remaining in some of the blocks that were cycled through the wear leveling process, and some original data may still be occupying a bad block. But the chances of recovering a specific file intact are minuscule, especially if the desired file was larger than a single block.
      – John Deters
      13 hours ago




      1




      1




      This is the hypothetical sphere we're entering. Having a "recall one seminal paper" doesn't directly translate to "there's a tool that makes data recovery possible for OP".
      – BlueWizard
      8 hours ago




      This is the hypothetical sphere we're entering. Having a "recall one seminal paper" doesn't directly translate to "there's a tool that makes data recovery possible for OP".
      – BlueWizard
      8 hours ago




      1




      1




      @BlueWizard There are reasons to give an incomplete or abstract answer. The reason "because you asked people on the internet" is not one of them - especially not on a Q&A site on the internet.
      – Tom K.
      7 hours ago




      @BlueWizard There are reasons to give an incomplete or abstract answer. The reason "because you asked people on the internet" is not one of them - especially not on a Q&A site on the internet.
      – Tom K.
      7 hours ago




      1




      1




      Everybody dissatisifed with my answer is free to write their own answer. This comment section is not for extended discussions on alternative means of data revovery (not mentioned in my answer at all). I will not substantially rewrite an answer that has already received multiple positive responses: it would be unfair towards those people.
      – BlueWizard
      7 hours ago




      Everybody dissatisifed with my answer is free to write their own answer. This comment section is not for extended discussions on alternative means of data revovery (not mentioned in my answer at all). I will not substantially rewrite an answer that has already received multiple positive responses: it would be unfair towards those people.
      – BlueWizard
      7 hours ago












      up vote
      1
      down vote













      Is Data Remanence a Myth?



      This is great coverage of the underlying question -- is data recoverable after a wipe. And while the preponderance of answers agree to be "no", the source documentation does also asert this but acquieses that bits of information are potentially recoverable.



      So the answer to your question is "no", you cannot recover whole video files after a byte-by-byte overwrite. However, if the drive is known to contain text based data of significant interest where fragments may be enough to piece together a provactive picture, the answer becomes less definite. But, in those cases, you'd be talking in the realm of corporate espionage by the biggest companies in the world and/or nation-states.






      share|improve this answer

























        up vote
        1
        down vote













        Is Data Remanence a Myth?



        This is great coverage of the underlying question -- is data recoverable after a wipe. And while the preponderance of answers agree to be "no", the source documentation does also asert this but acquieses that bits of information are potentially recoverable.



        So the answer to your question is "no", you cannot recover whole video files after a byte-by-byte overwrite. However, if the drive is known to contain text based data of significant interest where fragments may be enough to piece together a provactive picture, the answer becomes less definite. But, in those cases, you'd be talking in the realm of corporate espionage by the biggest companies in the world and/or nation-states.






        share|improve this answer























          up vote
          1
          down vote










          up vote
          1
          down vote









          Is Data Remanence a Myth?



          This is great coverage of the underlying question -- is data recoverable after a wipe. And while the preponderance of answers agree to be "no", the source documentation does also asert this but acquieses that bits of information are potentially recoverable.



          So the answer to your question is "no", you cannot recover whole video files after a byte-by-byte overwrite. However, if the drive is known to contain text based data of significant interest where fragments may be enough to piece together a provactive picture, the answer becomes less definite. But, in those cases, you'd be talking in the realm of corporate espionage by the biggest companies in the world and/or nation-states.






          share|improve this answer












          Is Data Remanence a Myth?



          This is great coverage of the underlying question -- is data recoverable after a wipe. And while the preponderance of answers agree to be "no", the source documentation does also asert this but acquieses that bits of information are potentially recoverable.



          So the answer to your question is "no", you cannot recover whole video files after a byte-by-byte overwrite. However, if the drive is known to contain text based data of significant interest where fragments may be enough to piece together a provactive picture, the answer becomes less definite. But, in those cases, you'd be talking in the realm of corporate espionage by the biggest companies in the world and/or nation-states.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 19 hours ago









          thepip3r

          38718




          38718






















              up vote
              0
              down vote













              It depends on what you mean when you say “filled with random video files”.



              If the drive was completely filled to capacity with new data, it is highly unlikely to be retrievable.



              If the drive was filled to 50% of capacity with new data, the chances are better, but not great.






              share|improve this answer





















              • Filled completely ☹
                – Vini7
                20 hours ago






              • 1




                Video files usually have compression. Thus it's unlikely that the SSD controller compressed it before writing it. Some people try to "zero out" their SSDs and then are astonished at the speed on which the SSD is able to do so.
                – BlueWizard
                19 hours ago















              up vote
              0
              down vote













              It depends on what you mean when you say “filled with random video files”.



              If the drive was completely filled to capacity with new data, it is highly unlikely to be retrievable.



              If the drive was filled to 50% of capacity with new data, the chances are better, but not great.






              share|improve this answer





















              • Filled completely ☹
                – Vini7
                20 hours ago






              • 1




                Video files usually have compression. Thus it's unlikely that the SSD controller compressed it before writing it. Some people try to "zero out" their SSDs and then are astonished at the speed on which the SSD is able to do so.
                – BlueWizard
                19 hours ago













              up vote
              0
              down vote










              up vote
              0
              down vote









              It depends on what you mean when you say “filled with random video files”.



              If the drive was completely filled to capacity with new data, it is highly unlikely to be retrievable.



              If the drive was filled to 50% of capacity with new data, the chances are better, but not great.






              share|improve this answer












              It depends on what you mean when you say “filled with random video files”.



              If the drive was completely filled to capacity with new data, it is highly unlikely to be retrievable.



              If the drive was filled to 50% of capacity with new data, the chances are better, but not great.







              share|improve this answer












              share|improve this answer



              share|improve this answer










              answered 20 hours ago









              Don Simon

              14617




              14617












              • Filled completely ☹
                – Vini7
                20 hours ago






              • 1




                Video files usually have compression. Thus it's unlikely that the SSD controller compressed it before writing it. Some people try to "zero out" their SSDs and then are astonished at the speed on which the SSD is able to do so.
                – BlueWizard
                19 hours ago


















              • Filled completely ☹
                – Vini7
                20 hours ago






              • 1




                Video files usually have compression. Thus it's unlikely that the SSD controller compressed it before writing it. Some people try to "zero out" their SSDs and then are astonished at the speed on which the SSD is able to do so.
                – BlueWizard
                19 hours ago
















              Filled completely ☹
              – Vini7
              20 hours ago




              Filled completely ☹
              – Vini7
              20 hours ago




              1




              1




              Video files usually have compression. Thus it's unlikely that the SSD controller compressed it before writing it. Some people try to "zero out" their SSDs and then are astonished at the speed on which the SSD is able to do so.
              – BlueWizard
              19 hours ago




              Video files usually have compression. Thus it's unlikely that the SSD controller compressed it before writing it. Some people try to "zero out" their SSDs and then are astonished at the speed on which the SSD is able to do so.
              – BlueWizard
              19 hours ago










              up vote
              0
              down vote













              You said the hard drive is SSD. This is enough information to answer with a resounding no - even with a single pass write. Let me explain why ...



              With an SSD when you delete a file the operating system sends a TRIM command to the SSD and the SSD will delete said file completely. This happens immediately. Why? Because it's faster for the SSD/OS to work this way.



              You can read more about it here. Provided the OS issues the TRIM command and the SSD acts upon it then a 1 pass write is enough.



              Any more than that and you're just going to burn your SSD out quicker.






              share|improve this answer

























                up vote
                0
                down vote













                You said the hard drive is SSD. This is enough information to answer with a resounding no - even with a single pass write. Let me explain why ...



                With an SSD when you delete a file the operating system sends a TRIM command to the SSD and the SSD will delete said file completely. This happens immediately. Why? Because it's faster for the SSD/OS to work this way.



                You can read more about it here. Provided the OS issues the TRIM command and the SSD acts upon it then a 1 pass write is enough.



                Any more than that and you're just going to burn your SSD out quicker.






                share|improve this answer























                  up vote
                  0
                  down vote










                  up vote
                  0
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                  You said the hard drive is SSD. This is enough information to answer with a resounding no - even with a single pass write. Let me explain why ...



                  With an SSD when you delete a file the operating system sends a TRIM command to the SSD and the SSD will delete said file completely. This happens immediately. Why? Because it's faster for the SSD/OS to work this way.



                  You can read more about it here. Provided the OS issues the TRIM command and the SSD acts upon it then a 1 pass write is enough.



                  Any more than that and you're just going to burn your SSD out quicker.






                  share|improve this answer












                  You said the hard drive is SSD. This is enough information to answer with a resounding no - even with a single pass write. Let me explain why ...



                  With an SSD when you delete a file the operating system sends a TRIM command to the SSD and the SSD will delete said file completely. This happens immediately. Why? Because it's faster for the SSD/OS to work this way.



                  You can read more about it here. Provided the OS issues the TRIM command and the SSD acts upon it then a 1 pass write is enough.



                  Any more than that and you're just going to burn your SSD out quicker.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered 17 hours ago









                  BugHunterUK

                  1858




                  1858






























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