Windows 8 and 8.1 Forums


SOME Drives show in UEFI but not in Windows

  1. #1


    Posts : 26
    2 x W7-64, W81-64, W10-64, 2 x NAS (Samba), and a partridge in a pear tree

    SOME Drives show in UEFI but not in Windows


    Hi there,
    I am hoping someone here can help:
    I just picked up my new W8.1 computer from the store and started playing with it. I inserted 3 GPT Hard Drives. All three showed in the UEFI but only one of them showed up in Device Manager and in Disk Management. No matter what I tried, I could not get those other 2 disks to show up. Finally, I decided to re-load the whole darned thing from the recovery partition and re-load all drivers etc. Now all three Hard drives I had inserted showed in Windows. (I looked at all of them - all are fine - no Hardware issues)
    However: I later changed the positions of the hard drives – i.e. the drive that WAS in slot 2 was moved to slot 1 etc. – I’m right back to where I was before: All three drives show in the UEFI – only one of them shows in Windows. This is my first machine with a UEFI. Is there something special that needs to be done to get those drives to show up in Windows?
    One more thing: I also started the system using a bootable CD (Aronis recovery CD) and from here, all drives are visible.

      My System SpecsSystem Spec

  2. #2


    Posts : 2,690
    Windows 3.1 > Windows 10


    you may want to look into your intel rapid storage technology settings
      My System SpecsSystem Spec

  3. #3


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Check disk management, see if they show and all have drive letters assigned.
      My System SpecsSystem Spec

  4. #4


    Posts : 26
    2 x W7-64, W81-64, W10-64, 2 x NAS (Samba), and a partridge in a pear tree

    Update


    @KYHI - I'm not sure I even have Intel rapid storage technology (or where I would even look for it)
    I was unable to find anything that referred to it in Device Mangler.
    The MSI motherboard ships with a utility called "MSI Live Update 6". This utility normally just crashes but if you do a "manual scan" on the MB driver only, it shows "Intel ME Drivers not installed" - It then downloads a file "Intel_ME_Drivers_10.0.028.1000" - It never installs that file. If I try to install that file manually, it tells me, a newer version is already installed.

    @alphanumeric
    To quote my original post: "...only one of them showed up in Device Manager and in Disk Management." - That's what this problem is all about.

    @everyone
    Some additional system info:
    This is an MSI X99S Xpower AC (MS07881) board with 32Gb of DDR4 memory and a six-core i7 5930K CPU
    Currently there is only one system drive (an SSD) connected. All the drives I am fighting with are "regular" hard drives that contain only data.

    Further developments:
    Switched the UEFI to enable "Windows 8/8.1 Features" (had no idea there was such a setting) also enabled "MSI Fast Boot" (which is supposedly faster than "regular" Fast Boot). Result: The system crashes as soon as more than one Hard Drive is connected.
      My System SpecsSystem Spec

  5. #5


    Posts : 2,690
    Windows 3.1 > Windows 10


    from command prompt(admin)

    type> diskpart
    type> list disk

    post pic

    With the info you provided in the update > it appears you OS is setup in legacy mode..

    another way to tell control panel > Admin tool > system info

    Attachment 59869
      My System SpecsSystem Spec

  6. #6


    Posts : 26
    2 x W7-64, W81-64, W10-64, 2 x NAS (Samba), and a partridge in a pear tree

    @KYHI


    Diskpart does not show the disks in question (see attachment)
    It shows the SSD (119GB), one MBR disk (1.5TB), one GPT disk @ 2TB and one GPT disk @ 3 TB
    2 additional 3TB disks are missing. (I had to disable the "Fast Boot" and "Win8/8.1 Features" options to be able to get back into Windows.

    BIOS Mode shows UEFI (NOT Legacy or BIOS mode)
    Attached Thumbnails Attached Thumbnails diskpart.jpg  
      My System SpecsSystem Spec

  7. #7


    Posts : 2,690
    Windows 3.1 > Windows 10


    Support for the Intel® Rapid Storage Technology (Intel® RST)

    Attachment 59881

    Honestly not sure why drives not being seen by OS - but are being seen by firmware - so that tells me the SATA ports are active
      My System SpecsSystem Spec

  8. #8


    Posts : 26
    2 x W7-64, W81-64, W10-64, 2 x NAS (Samba), and a partridge in a pear tree


    The documentation for RST at Intel® Rapid Storage Technology (Intel® RST) — Supported Chipsets and Controller Hubs does not list the x99 chipset my board uses.
      My System SpecsSystem Spec

  9. #9


    Posts : 26
    2 x W7-64, W81-64, W10-64, 2 x NAS (Samba), and a partridge in a pear tree


    Since everyone appears to be fresh out of ideas, I am marking this thread as solved
      My System SpecsSystem Spec

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