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  1. Joined : Oct 2016
    Posts : 8
    Windows 10
       21 Oct 2016 #1

    Hard drive not recognized on new PC


    Hello,

    So I've recently built a new PC and I installed 4 hard drives on it.

    1)256GB SSD
    2)500GB HDD
    3)600GB HDD
    4)600GB HDD

    My problem is that the 3rd HDD drive is not recognized and its displayed as "Intel Raid 0 Volume" in Device Manager (I didn't change any settings in BIOS for RAID configuration).

    When I enter Disk Management I get the message:

    Click image for larger version. 

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    And also in partition management its displayed as "Disk 3 Unknown 1192.34GB Not initialized - Unallocated" (the actual HDD size is 600GB)

    Two things I noticed:
    - In BIOS all the drives are displayed correctly
    - I used a SATA to USB adapter and the drive works fine with all the data on it.

    I tried running some Chkdsk tests but didn't get anywhere since the drive doesn't event have a letter assigned to begin with.

    Anyone knows a possible solution?

    Thank you
      My System SpecsSystem Spec


  2. Joined : May 2016
    Posts : 156
    Windows 10 Pro
       21 Oct 2016 #2

    Assign a letter to it manually and it should work.
      My System SpecsSystem Spec


  3. Joined : Oct 2016
    Posts : 8
    Windows 10
       21 Oct 2016 #3

    Plankton said: View Post
    Assign a letter to it manually and it should work.
    How do I assign a letter to it in Windows 10?
      My System SpecsSystem Spec

  4.    21 Oct 2016 #4

    Open the Disk Management utility (diskmgmt.msc). Right click on disk 3, then select Assign drive letter... from the resulting pop-up menu. Easy!
    It may help to use diskpart before hand to wipe the disk, like this
    diskpart
    list disk (gives you disk number for the drive you're working on, should be 3)
    select disk 3
    clean
    exit
    Hopefully, that will clear off the RAID layout it currently "remembers."
    HTH,
    --Ed--
      My System SpecsSystem Spec


  5. Joined : Oct 2016
    Posts : 8
    Windows 10
       21 Oct 2016 #5

    EdTittel said: View Post
    Open the Disk Management utility (diskmgmt.msc). Right click on disk 3, then select Assign drive letter... from the resulting pop-up menu. Easy!
    It may help to use diskpart before hand to wipe the disk, like this
    diskpart
    list disk (gives you disk number for the drive you're working on, should be 3)
    select disk 3
    clean
    exit
    Hopefully, that will clear off the RAID layout it currently "remembers."
    HTH,
    --Ed--
    Well I wish it was that easy There isn't an option to change letter on the particular drive

    Click image for larger version. 

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      My System SpecsSystem Spec

  6.    21 Oct 2016 #6

    OK then, you may want to visit the maker's website and see if they have special formatting tools to grapple with the drive. Or you may want to try one of the free partition managers profiled in this article Best Free Partition Management Software | Gizmo's Freeware to see if one of them can help you access the drive. Otherwise, you may have to start thinking about acquiring a replacement. So sorry for your trouble.
    --Ed--
      My System SpecsSystem Spec


  7. Joined : Oct 2016
    Posts : 8
    Windows 10
       22 Oct 2016 #7

    EdTittel said: View Post
    OK then, you may want to visit the maker's website and see if they have special formatting tools to grapple with the drive. Or you may want to try one of the free partition managers profiled in this article Best Free Partition Management Software | Gizmo's Freeware to see if one of them can help you access the drive. Otherwise, you may have to start thinking about acquiring a replacement. So sorry for your trouble.
    --Ed--
    Thanks for your suggestion. I've tried using EaseUS Partition Master but still I don't see any options to access the drive.

    Click image for larger version. 

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    (Btw the "bad" drive is the same model as Disk4, but Disk4 works just fine. And as you can see it shows 1.16TB unallocated space while in reality it should be 596GB)

    Also the weird thing is that I can access all my data using a SATA to USB adapter, so I guess the drive should still be "workable".

    Any other advice?
    Thanks
      My System SpecsSystem Spec

  8.    22 Oct 2016 #8

    Which drive in the preceding screen shot is the bad one? According to diskmgmt.msc it's drive 3 but which one is it in the EaseUS display? I'm confused, please straighten me out...
    Why is drive 4 showing as "read-only"? Curious...
    --Ed--
      My System SpecsSystem Spec


  9. Joined : Oct 2016
    Posts : 8
    Windows 10
       22 Oct 2016 #9

    EdTittel said: View Post
    Which drive in the preceding screen shot is the bad one? According to diskmgmt.msc it's drive 3 but which one is it in the EaseUS display? I'm confused, please straighten me out...
    Why is drive 4 showing as "read-only"? Curious...
    --Ed--
    Yeah in Disk Management its shown as Disk3 but in EaseUS its shown as Disk4 for some reason. I'm not sure why its showing read-only but I was unable to change it.
      My System SpecsSystem Spec

  10.    24 Oct 2016 #10

    There has been some discussion here on the forums about issues related to drives being set to read only causing all kinds of problems. The troubleshooting involved is kind of interesting, as described in this 2011 Windows Core Team blog post: My Disk is Read-only, Help! | Ask the Core Team. They explain some steps at the command line to help you assess your situation. You could do those things, for sure, but what about replacing that drive? If it's new enough, you should be able to swap with the maker for a free replacement. OTOH, a new drive isn't all that expensive any more. It might be more expeditious just to replace it. What do you think?
    --Ed--
      My System SpecsSystem Spec


 
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