External Hard drive formatted / deleted while installing windows 10

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  1. DeaconFrost's Avatar
    Posts : 1,363
    Windows 10 Pro x64
       #21

    DavidY said:
    If it's the same as the other thread then the cure seems to be to rollback to the previous version. In that scenario there's nothing wrong on the drive itself that needs recovering - the issue seemed to be Windows Anniversary Update itself.
    I will preface this by saying I didn't read the thread you linked, but if Disk Management is showing the drive as only having a 32 GB formatted partition, I wouldn't be worrying about OS versions as a solution. I don't see how rolling back to a previous version would restore the formatting to a drive that already had a new partition created over the existing one. I would see that as either fixed with recovery software or gone completely.
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  2. Slartybart's Avatar
    Posts : 3,502
    Win_8.1-Pro, Win_10.1607-Pro, Mint_17.3
       #22

    DeaconFrost said:
    I will preface this by saying I didn't read the thread you linked, but if Disk Management is showing the drive as only having a 32 GB formatted partition, I wouldn't be worrying about OS versions as a solution. I don't see how rolling back to a previous version would restore the formatting to a drive that already had a new partition created over the existing one. I would see that as either fixed with recovery software or gone completely.
    Some machines aren't reading external drives (some even report secondary internal drive) after updating to 1607. The symptom is the drive is raw or unallocated, but the drive is fine on another machine or on the same machine if the OS is rolled back.

    I don't think that is the case on this thread, though.

    The Disk Mgmt capture in post# 1 looks as though sam1964 put the install media on the 1 TB drive and not on a flash drive.

    External Hard drive formatted / deleted while installing windows 10-x.jpg

    I've almost done this, select the wrong device, but caught my mistake before committing.

    The best hope is to recover the partition(s) (I think we agree on that)
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  3. NavyLCDR's Avatar
    Posts : 15,574
    Windows 10 Pro
       #23

    DavidY said:
    It seems to be a problem with the Anniversary Update
    Have a look here:
    Windows 10 Anniversary update problems, not recognizing external hdd

    If it's the same problem then the advice seems to be: do NOT try to recover the data. It's most likely still there and the issue is that the Anniversary edition of Windows 10 isn't reading it properly.

    More links:
    http://answers.microsoft.com/en-us/w...1-f1872b7b4ba1
    https://www.reddit.com/r/Windows10/c...nked/?sort=new
    The Anniversary Update of Windows 10 is reading the external hard drive just fine. It is showing EXACTLY what is on that drive. The OP reformatted his external drive and installed the Windows 10 installation ISO to it. When the OP clicked NEXT, there was a warning on the screen that the USB drive would be erased - and that is exactly what happened when he clicked NEXT. It doesn't matter how many computers he connects the external hard drive to, and what operating system he connects it to. It is going to show exactly what is on that hard which is one 32GB FAT32 partition with the Windows 10 installation files on it.
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  4. Posts : 1,456
       #24

    NavyLCDR, what about this? Thread starter
    -- purchases 2-3 good quality equal size usb sticks or good quality 2TB HDs
    -- using Macrium Reflect portable version -- either clones source usb stick AS IS onto target usb stick, or
    -- using Macrium Reflect portable version -- full images source usb stick AS IS onto target ext HD, maybe make two full images at least
    -- now, having two or more "AS IS un-fixed un-altered copies" of the source usb, he can experiment with the original
    That worked in the older W95-98SE days, will that work now?
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  5. simrick's Avatar
    Posts : 16,137
    W10Prox64
       #25

    RolandJS said:
    NavyLCDR, what about this? Thread starter
    -- purchases 2-3 good quality equal size usb sticks or good quality 2TB HDs
    -- using Macrium Reflect portable version -- either clones source usb stick AS IS onto target usb stick, or
    -- using Macrium Reflect portable version -- full images source usb stick AS IS onto target ext HD, maybe make two full images at least
    -- now, having two or more "AS IS un-fixed un-altered copies" of the source usb, he can experiment with the original
    That worked in the older W95-98SE days, will that work now?
    It should work - you can do an exact copy for forensic examination:


    External Hard drive formatted / deleted while installing windows 10-image-forensic-examination.png


    Then do the recovery on the image. I would begin as @Slartybart suggests, and recover the partition(s) first, then go for the data itself.
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  6. Slartybart's Avatar
    Posts : 3,502
    Win_8.1-Pro, Win_10.1607-Pro, Mint_17.3
       #26

    simrick said:
    .....
    Then do the recovery on the image. I would begin as @Slartybart suggests, and recover the partition(s) first, then go for the data itself.
    The cool thing about PW partition recovery (probably EaseUS as well) is that once you recover the partition, the data is there.

    I'm afraid the first 32 GB won't be completely recovered, but the ISO is only a few GBs so only that much data would be affected by overwrites. I was surprised how well it worked the first time I used it. When it works, it's a beautiful thang, when it doesn't there are other tools. PW partition recovery is the first thing I suggest - if it can't find the partitions ... on to another tool to recover the data.

    I'll bow out until sam does something that needs my attention. Other members know PW as well as I do, perhaps better - so we're all waiting on sam.

    I'm just having a conversation now
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  7. Posts : 575
    Windows 10
       #27

    There are many people around with Problems in External HDD, including I myself, where there is nothing wrong with HDD itself.
    Seems that Windows can not handle properly external USB HDD and I think an attempt to FIX the HDD may end in LOST of all Data.
    My advise is: DO NOT TRY TO RECOVER data, it is all there, just WIndows can not read USB/NTFS properly and is showing RAW.
    I had a issue with my USB HDD, it was working normally, suddenly there was an error, I could not access the HDD, I run Scan and Fix and at end I LOST almost 1TB of Data.
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  8. Posts : 1,521
    Windows 10 Pro (32-bit) 16299.15
       #28

    Adalwar said:
    There are many people around with Problems in External HDD, including I myself, where there is nothing wrong with HDD itself.
    Yeah that's what I thought at first as well... but the fact that there's a new partition and the size is 32GB is a giveaway - I think NavyLCDR and the others are right and this isn't the same problem as you had.
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  9. Posts : 575
    Windows 10
       #29

    DavidY said:
    Yeah that's what I thought at first as well... but the fact that there's a new partition and the size is 32GB is a giveaway - I think NavyLCDR and the others are right and this isn't the same problem as you had.
    OK. If there is already a new Partition, I am afraid that you will not be able to recover any data.
    But before you go ahead with recovery, I would try first to connect the HDD to other PC with other OS, not W10.
    Also, in case you want to recover, I would do it in other OS than W10.
    From what I am seeing , the common of all the problems are USB Hdd´s, Windows 10 and it results in unrecognized FS (File System).
    My thinking is, if indeed there is a problem with W10 not handling properly external USB Devices, then any attempt to further working on the Device will likely result in Lost of Data, there are no Magics or the like here. That was happening to me, I tried to fix it and Data was gone.
    That is my own opinion.
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  10. Posts : 10
    windows 8
    Thread Starter
       #30

    You are right, thats what happen with my external hard drive. Its now showing on 32GB FAT 32 and rest is unallocated.
    Based on my reading,
    I should try to recover the formatted data from unallocated space on 1TB external hard drive.
    Once I recover all data, I can recover partition.
    Am I Right ???

    NavyLCDR said:
    The Anniversary Update of Windows 10 is reading the external hard drive just fine. It is showing EXACTLY what is on that drive. The OP reformatted his external drive and installed the Windows 10 installation ISO to it. When the OP clicked NEXT, there was a warning on the screen that the USB drive would be erased - and that is exactly what happened when he clicked NEXT. It doesn't matter how many computers he connects the external hard drive to, and what operating system he connects it to. It is going to show exactly what is on that hard which is one 32GB FAT32 partition with the Windows 10 installation files on it.
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