Windows 10: Strange Boot Process - Two Drive Needed To Boot.

Discus and support Strange Boot Process - Two Drive Needed To Boot. in Windows 10 Installation and Upgrade to solve the problem; Backround: All disks involved in this issue are SATA SSD drives.Yesterday when I booted up my machine I was given the message, "No bootable device,... Discussion in 'Windows 10 Installation and Upgrade' started by southwestcoyote, Oct 13, 2023.

  1. SOUTHWESTCOYOTE
    southwestcoyote Win User

    Strange Boot Process - Two Drive Needed To Boot.


    Backround: All disks involved in this issue are SATA SSD drives.Yesterday when I booted up my machine I was given the message, "No bootable device, insert boot disk and press any key." I tried to fix it using automatic repair and then bootrec, form the command line, which made it worse. So I reinstalled windows on a new disk drive and reinstalled all applicationsthen downloaded all stored files from One Drive. I kept the old disk intact in case I needed something on it. After installation I left the old system disk in the machine planing to reformat it at some point.The issue: A boot screen

    :)
     
    southwestcoyote, Oct 13, 2023
    #1
  2. GNJHA
    GNJha Win User

    Boot Process

    Hi,

    Please suggest me a link that can explain the boot process step by step of ...

    • Windows 7,
    • Windows 8.1,
    • Windows 10,
    • Windows Server 2008 R2 and
    • Windows Server 2012 R2

    With Regards

    InTech
     
    GNJha, Oct 13, 2023
    #2
  3. DAVEM121
    DaveM121 Win User
    Windows 10 Boot process

    The best explanation I have read is this link on Quora, it explains each step of the boot process in detail. While it does not list all
    the files executed - this would be not be the same on different systems, it does give an in depth explanation

    Another thing you might like to look up is the difference in booting a BIOS based system as opposed to a UEFI based system -

    Click HERE     for a good article
     
    DaveM121, Oct 13, 2023
    #3
  4. BTARUNR
    btarunr Win User

    Strange Boot Process - Two Drive Needed To Boot.

    Can't boot from DVD drive

    Is your controller in RAID/AHCI modes? If so, the DVD drive will be listed as a separate device in the list of available boot devices, not as "CDROM". Remember that when setting boot device priority. Otherwise, read the manual to see which hotkey during POST brings up the boot menu that lets you select which device to boot from. Even here, the drive will be listed separately, and not as "CDROM".
     
    btarunr, Oct 13, 2023
    #4
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Strange Boot Process - Two Drive Needed To Boot.

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