Windows 8 and 8.1 Forums


Win 8.1 x64 and raw file system on external USB drive

  1. #1


    Posts : 38
    Windows 8.1x64 pro

    Win 8.1 x64 and raw file system on external USB drive


    I'm having an issue with an external Seagate 3TB USB drive that would not power up. So I took it apart, put the 3TB drive in another enclosure I have, connected it and now it wants to reformat the drive... says the file system is RAW.

    For the details, check here:
    cgsecurity.org

    I believe the data on the drive is mostly images and some videos that my daughter would like to save.

    Any suggestions?

      My System SpecsSystem Spec

  2. #2


    Sorry, "RAW" is not good. I encountered just the same problem last year when a fairly new Seagate 3TB drive suddenly would not boot anymore. None of the Windows data recovery apps I ran against it could find anything. I sent if off for commercial analysis and they told me that it encountered a hardware failure and wanted $1000 USD to rebuild it -- I said NO.

    The best data recovery app I've used recently is Active@File Recovery Pro. You can download and try it for free, but recovering anything but very small files requires a license. Last time I checked, it was around $30 USD for a license.
      My System SpecsSystem Spec

  3. #3


    Posts : 75
    Windows 7 Ultimate 32bit


    Hi speedlever,

    Your 3TB drive has a logical 512 B sector size but a physical 4096 B sector size . TestDisk reads 512 B sector size. Change it to 4096 in TestDisk and it should be able to read the drive correctly. The lost partitions should show up correctly now. Once this is achieved, use the list command to show all files and copy those to another drive. ( you should have another empty drive connected before you run TestDisk for that.) Only after copying all the files write the partition table found.

    "Under Testdisk, when I was looking at "Geometry", I realised that it a default 512 byte sectors. Now I understand a little bit about sector sizes, I changed it to 4096 sectors and when Testdisk analyzed the disk, it came back "green" :-)
    So now I'm going to use the copy function and pull those files off. "

    Note: I shall be out of station for the next three days and wouldn't show up here and hence I am leaving the above instructions for you to grapple with. Good Luck.
    Last edited by jumanji; 27 Aug 2015 at 22:07.
      My System SpecsSystem Spec

  4. #4


    Posts : 38
    Windows 8.1x64 pro


    Mark, thanks for the tip on the data recovery app. I may try that if jumanji's fix doesn't work.

    jumanji, I don't see any options in TestDisk v7 that allow me to change that parameter. I'll inquire around some and see if I can find any way to do that. Meanwhile, I'll leave this thread unsolved pending your return or my successful efforts to revive this drive. If I succeed, I"ll show this as solved.

    Otherwise, whichever ever one of us gets back to it first can update.

    Thanks all.
      My System SpecsSystem Spec

  5. #5


    Posts : 75
    Windows 7 Ultimate 32bit


    OK, I am back into my den after a overnight train journey.

    I now refer to the first screenshot in the TestDisk Forum showing the Device Information on your 3TB external drive wherein it says everything is fine and " Sector Sizes 512 bytes logical, 4096 bytes physical ". I only hope that nothing has changed since then. ( Indiscriminate use of data recovery software can spoil the broth and make the situation worse.)

    Try TestDisk again. But before doing that please plug out all other external drives/pendrives/ USB hubs/USB Printers/ Card Readers etc., Yes, all but your faulty external drive and another empty drive where you want to copy the recovered files. That will make identification of the drives easy in TestDisk. ( If you can you may also disconnect any other secondary drives on your machine keeping your system drive only ticking.)

    I shall now lead you to the point where you can change the sector size from 512 to 4096 in TestDisk and once that change is made and accepted by TestDisk, it should be able to analyse the disk, show the correct partitions.

    1. No Log - Enter

    2. Select your Disk ( not Drive) -Enter . ( In the screenshot it is my 320GB external drive,)
    Click image for larger version

    3. Select [Intel] Intel /PC Partition - Enter
    Click image for larger version

    4. Go to [Geometry] Change Disk Geometry - Enter
    Click image for larger version

    5. Go to [Sector Size] - Enter
    Click image for larger version

    6. Change Sector Size to 4096 - Enter
    Click image for larger version

    At this stage what screen you will get, I can't say .( I don't want to change it for my sector size is correct ) But generally TestDisk will accept it and then you have to analyse and it will find the partitions rightly. Then use the LIST command to list the files and copy those to the empty drive.

    If you have any doubts on any screen post the screenshot. and Quit TestDisk by pressing X in the top right title bar.

    You can rerun TestDisk again after getting my instructions. ( TestDisk is safe as long as you do not give a write command without knowing what it does or writes to the disk)
      My System SpecsSystem Spec

  6. #6


    Posts : 38
    Windows 8.1x64 pro


    jumanji,

    Thanks for the expanded info. I will test that shortly.

    Thus far, I've not tried much other than creating a Puppy Linux USB thumb drive and finding that I can't read it there either. Recuva doesn't recognize it as well. So I don't think I've done anything to jeopardize the data that I think still resides there.

    BTW, the problematic drive should only have a single partition.
      My System SpecsSystem Spec

  7. #7


    Posts : 38
    Windows 8.1x64 pro


    jumanji,

    I ran TestDisk again per your excellent instructions. However, I see no change in the display info, so I quit TestDisk (X'd out) pending further review. Here's a snapshot of the results:



    Any thoughts?
      My System SpecsSystem Spec

  8. #8


    Posts : 75
    Windows 7 Ultimate 32bit


    You have to tell me whether the sector size was shown as 512 and you changed it to 4096 and pressed enter.

    Please post the screen that appears. let me get confirmation that it is the same as shown in the last post.

    You can run TestDisk again. ( The sector change you did basically holds only for that session.)

    I am online. So don't close TestDisk this time. I shall follow it and send you instructions,.
      My System SpecsSystem Spec

  9. #9


    Posts : 75
    Windows 7 Ultimate 32bit


    OK, I see you had gone offline.

    Repeat TestDisk the same way as instructed earlier. After you change the sector size to 4096 and enter , if you get the same screen as in your post #7:

    TestDisk confirms the change and shows OK highlighted. Press enter to say OK and show me the next screen.Let us see where it takes you further.

    ( If I am offline, you may close TestDisk and wait till I see the posted screenshot and give further instructions.)

    As I mentioned earlier with the changed Sector size, you should Analyse the Disk and see whether TestDisk shows your partition and list command shows all your files.
      My System SpecsSystem Spec

  10. #10


    Posts : 38
    Windows 8.1x64 pro


    Ah yes. I figured I had to press enter before any thing would happen.

    Sorry... just now getting back to this.

    Yes, the sector size was showing as 512 and I changed it to 4096 before I X-d out of TestDisk.

    Standby while I power the drive back up. Then I'll run Testdisk again and this time hit enter after changing the sector size. I'll post a screen shot of the results.

    Edit:

    Here's TestDisk prior to changing the sector size:


    Here's TestDisk after changing the sector size to 4096 then choosing OK:
      My System SpecsSystem Spec

Page 1 of 3 123 LastLast
Win 8.1 x64 and raw file system on external USB drive
Related Threads
I have read similar problems I am having now but NONE have so far as i have read, with a solution. > Firstly, my situation is this, I HAVE RECENTLY SUCCESSFULLY restored my pc from a previously created system image using default windows 8.1 (i have no question regarding the process/procedure on...
I did a windows system image back up on our windows 8 PC before we had to send our HP All-In-One to HP to replace a broken hard drive (we have only had the computer for less than 6 months, arghh!). They also told me to wipe the computer prior to sending it so no personal information was on the...
Hey, I created some windows 8 system images(Using the internal system image tool). Now I find restore points more useful, but I would have to turn the system protection on for an external hard drive. The problem is that I don't understand the sophisticated message Using system protection on a drive...
Help. This is driving me nuts. Not sure what's happened and pretty sure I have not done anything to silly. Background : New Windows8 install all update and drivers : system running absolutely fine. Issue :Copying data from one drive to another via any hub on system...
Hi I need to replace a file in windows\system32\en-us and it gives me a deny file to be copied how can I do this so I can copy a file or replace a file. thanks sorry how to gain access.
Hey guys.. I am new to this forum.. Recently i upgraded my system to windows 8..N after clean install i backed up the copy of my C drive (Includes System Image) to my external 2TB Hard Drive.. It took around 250GB of hard drive space..Now since i am running out of space i decided to delete the...
Hi guys, My external WD passport started showing up as empty and I can't access it directly in explorer. I ran a few chkdsk commands and it came back clean. When I attached it to another USB slot, it came up as being RAW instead of the default NTFS. Everything shows up fine in Stellar Phoenix...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook