Ext. 4TB USB Suddenly Unallocated w/ Lots of Data Looking 4 HELP : )

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  1. Posts : 618
    windows 10 pro
    Thread Starter
       #21

    NavyLCDR said:
    The good news is that Kyhi's Recovery Tools drive contains MiniTool Partition Wizard Pro!
    Windows 10 Recovery Tools - Bootable Rescue Disk - Windows 10 Forums

    Well, that's certainly interesting to say the least : ) Thanks for that.
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  2. Posts : 18,470
    Windows 11 Pro
       #22

    Good luck!
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  3. Posts : 119
    Windows 11 Home 64 Bit
       #23

    Hi all,

    I had this issue with a caddy drive of mine the other day (3 or 4 days ago).

    All I needed to do was remove the caddy and reinsert it & it then loaded with no adverse issues.

    Try a shutdown & reboot if you are worried about hot swapping the drive.
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  4. Posts : 11,639
    Windows11 Home 64bit v:23H2 b:22631.3374
       #24

    Hi phaedruspress,

    Without much ado, ( which I shall reserve for later):

    Before trying any Partition Recovery or Data Recovery, you should try this.

    Loss of the protective MBR in your 4TB GPT along with the GPT header and GPT Partition table could lead to it becoming unallocated. ( If you had used an incompatible dock, this could happen)

    You should check Sector 0 of your disk with bootice. If it doesn't match exactly with the following screenshot, you should zero all the fields write these into the fields and save it it to sector 0. Post a screenshot of it before I give the go ahead.

    Ext. 4TB USB Suddenly Unallocated w/ Lots of Data Looking 4 HELP : )-24-11-2018-15-47-05.jpg

    There is every chance of your disk coming alive. ( Unfortunately I do not have any drive >2TB to try it alive)

    Bootice:
    https://www.sevenforums.com/hardware...ml#post2584426

    Download your Windows bit version of bootice 32bit or 64 bit.

    Please make sure you are operating on the correct disk when you use bootice. When you click on Sector Edit it will take you directly to Sector 0.

    If I find time , I shall write in detail how to do it.
    Last edited by jumanji; 24 Nov 2018 at 06:13.
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  5. Posts : 1,317
    Windows 10
       #25
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  6. Posts : 11,639
    Windows11 Home 64bit v:23H2 b:22631.3374
       #26

    Thank you @nIGHTmAYOR for coming out with your experience. Yes, change to another connecting cable, plug it into another USB port. If those do not help, then proceed with bootice.

    I just prepared my 500GB Seagate external disk and initialised it as a GPT drive.

    Initialised as a GPT drive with Windows Disk Management. Bootice shows the ASCII Panel on the right which you can ignore.


    As you can see, the sector map is exactly the same as the screenshot I posted in my post # 24( which I picked up from another site showing the Sector 0 Protective MBR.)

    It will be the same in all GPT disks initialised with Windows Disk Management.

    But for an external drive, most of it will be not be necessary. When I continue, I shall post a screenshot of how sector 0 will look when initialised with third party Partitoning Tools such as Minitool Partition Wizard.

    Out for a dinner meet and will return after that to continue.
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  7. Posts : 618
    windows 10 pro
    Thread Starter
       #27

    jumanji said:
    Hi phaedruspress,

    Without much ado, ( which I shall reserve for later):

    Before trying any Partition Recovery or Data Recovery, you should try this.

    Loss of the protective MBR in your 4TB GPT along with the GPT header and GPT Partition table could lead to it becoming unallocated. ( If you had used an incompatible dock, this could happen)

    You should check Sector 0 of your disk with bootice. If it doesn't match exactly with the following screenshot, you should zero all the fields write these into the fields and save it it to sector 0. Post a screenshot of it before I give the go ahead.

    Ext. 4TB USB Suddenly Unallocated w/ Lots of Data Looking 4 HELP : )-24-11-2018-15-47-05.jpg

    There is every chance of your disk coming alive. ( Unfortunately I do not have any drive >2TB to try it alive)

    Bootice:
    https://www.sevenforums.com/hardware...ml#post2584426

    Download your Windows bit version of bootice 32bit or 64 bit.

    Please make sure you are operating on the correct disk when you use bootice. When you click on Sector Edit it will take you directly to Sector 0.

    If I find time , I shall write in detail how to do it.
    Hi,

    Well, that is certainly an interesting twist to solving the problem : ) I have not as yet attempted to recover the drive using any of the valuable suggestions already mentioned due to family commitments and the US Holiday.

    So I download the program from here:

    https://www.majorgeeks.com/mg/get/bootice_64_bit,1.html

    >You should check Sector 0 of your disk with bootice. If it doesn't match exactly with the following screenshot, you should zero all the fields write these into the fields and save it it to sector 0.

    So I assume that once I run the program I am able to select sector 0 and see if it matches exactly with your screenshot. The rectangular squares that I see towards the bottom of the screenshot did you make them or is that how the screenshot looks? And why are they in a rectangle?

    >
    You should check Sector 0 of your disk with bootice. If it doesn't match exactly with the following screenshot, you should zero all the fields write these into the fields and save it it to sector 0.

    I am not sure I follow when you say "you should zero all the fields." Zero all what fields? And then when you say "write these into the fields" write what into the fields and save? the zero's?

    Sorry, my unfamiliarity with this procedure I am afraid that I might cause more damage than good.

    >
    If I find time , I shall write in detail how to do it.

    Well. it looks like I won't be able to tackle this with yours or the other solutions until early this week so if you have the time and inclination I would certainly welcome a primer for dummies step by step. Thanks for the input.


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  8. Posts : 618
    windows 10 pro
    Thread Starter
       #28

    nIGHTmAYOR said:
    Thanks for the input. The docking station with the accompanying USB cable is working with my other USB external 2TB and 4TB drives.
      My Computers


  9. Posts : 11,639
    Windows11 Home 64bit v:23H2 b:22631.3374
       #29

    phaedruspress said:
    .....Well. it looks like I won't be able to tackle this with yours or the other solutions until early this week so if you have the time and inclination I would certainly welcome a primer for dummies step by step. Thanks for the input.
    Not to worry. As I write this thesis , you will be guided through A-Z. In order to make it self-contained, I shall be repeating some steps already explained in my Seven Forums thread. So when you have time just go through it and familiarize yourself with bootice. (I am also going to take a lot of time with many breaks.) https://www.sevenforums.com/hardware...ml#post2584426 9

    (Wherefrom to download bootice,I shall tell you tomorrow. The author's website has always been dodgy. I have to find alternative websites. Found Majorgeeks also couldn't reach it.)

    Will continue tom morning. Now sleeptime for me.
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  10. Posts : 11,639
    Windows11 Home 64bit v:23H2 b:22631.3374
       #30

    @phaedruspress,

    Download bootice from https://www.softpedia.com/get/System.../Bootice.shtml

    When you click on the download link, a popup window will open. Click on "Software download (US) -x86". Wait till download completes. The downloaded zip file -
    BOOTICE_2016.06.17_v1.3.4.0.zip

    Extract this to your C drive. Find the folder BOOTICE_2016.06.17_v1.3.4.0 in your C drive. You will find BOOTICEx64_2016.06.17_v1.3.4.0.exe and BOOTICEx86_2016.06.17_v1.3.4.0.exe

    If you have 64bit Windows retain BOOTICEx64*.exe and delete the other.
    If you have 32bit Windows retain BOOTICEx86*.exe and delete the other so that you don't click on the wrong *.exe file.

    Don't do anything with that till I give further instructions for I have to complete my post #26 after the sun rises.
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