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  1. #1
    New ROGer Array
    Join Date
    Mar 2021
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    Can't Boot Windows From M.2 NVMe Drive

    Hello,

    I am attempting to do a clean install of Windows 10 onto an M2 NVMe SSD. I can successfully install Windows onto the drive, but I cannot actually boot into Windows after completing the installation.

    • Mobo is a ASUS Z490-I
    • M2 drive is a Corsair MP400
    • The motherboard always identifies the M2 drive as a storage device
    • The motherboard will only identify the M2 drive in the boot order if CSM is enabled
    • When appearing in the boot order, I only see "Corsair MP400" listed; I do not see "UEFI MP400", "Windows Boot Manager MP400", etc.
    • If I boot into the M2 drive with CSM enabled, I get a "Reboot and Select proper Boot device" message
    • If I boot with CSM disabled, I go straight into the UEFI BIOS
    • I have cleaned the M2 drive and reformatted it as GPT
    • The M2 drive has an EFI partition
    • If I disable CSM, I get the following message: "Due to Microsoft Secure Boot regulations, ensure the Microsoft signed UEFI driver is contained in the plugged PCI-E based storages including M.2 SSD before set the Launch CSM to [Disabled]. Otherwise, the PCI-E based storages will be only available for the data drive usage. Contact the PCI-E storage vendor for the UEFI driver availability details."
    • I have installed Windows 10 via USB drive onto the M2 drive (I know it's there because I can see the files there when I boot into Windows via a different drive)
    • When installing and booting, I have disconnected all hard drives except the M2
    • I have attempted to boot both with secure boot set to "Windows UEFI" and "Other OS" without success
    • Fast boot is disabled


    Any help in resolving this would be appreciated.

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