Windows 10: Multi-boot USB that doesnt require CSM on or Secure-boot off?

Discus and support Multi-boot USB that doesnt require CSM on or Secure-boot off? in Windows 10 Support to solve the problem; I presume this doesnt exist - at least I havent found it in my digging. I dont want to enable CSM, or have to bother with disabling secureboot, even... Discussion in 'Windows 10 Support' started by klepp0906, Feb 28, 2020.

  1. KLEPP0906
    klepp0906 Win User

    Multi-boot USB that doesnt require CSM on or Secure-boot off?


    I presume this doesnt exist - at least I havent found it in my digging. I dont want to enable CSM, or have to bother with disabling secureboot, even though it would admittedly make a few things easier.

    I just ran into a situation where I dont have enough usb sticks for what I need. That and finding it a bit silly to use up an entire 64gb usb stick for a rescue environment amounting to megabytes, had me look into my options.

    Initially i thought I could partition a drive, add drive letters to each partition, and call it a day. Apparently in a perfect world - just not this one.

    So I then saw the multitude of multiboot offerings, winsetupfromusb, yumi, easy2boot.

    Seems each and every one requires secureboot to be disabled, CSM to be enabled, or both.

    Ideally id have a linux, mac, and windows installer all on the same flash. I can see where that becomes sketchy due to the mac filesystem. Its possible but a doozy iirc.

    I'm willing to split my installers up on separate sticks, but i'd like to at least get my rescue environments on the same one. Macrium/WindowsRE/MinitoolPW. Perhaps add memtest.

    is that possible given the constraints?

    :)
     
    klepp0906, Feb 28, 2020
    #1
  2. DAVEM121
    DaveM121 Win User

    Usb boot

    In your BIOS, disable Secure Boot, enable Legacy Boot, enable CSM if Required/available

    Then if the option to enable USB Boot appears, enable it

    Then your USB flash Drive should appear in the boot list

    If it still does not, plug it into another USB port, preferable not beside the one it is currently plugged into and try again to see if it appears in the boot menu . . .
     
    DaveM121, Feb 28, 2020
    #2
  3. HARRY9001
    Harry9001 Win User
    Gigabyte Mobo not booting from usb

    The word 'csm' doesnt exist anywhere in my bios.
    As far as secure boot is concerned, its disable and there's no way i can select it. It is there but i cant select it.

    My bios only has Legacy and UEFI options, wait If i select Win 8 as my OS then the Csm option appears and even i can change secure boot, but it disappers as soon as i select other Os instead of win 8.
     
    Harry9001, Feb 28, 2020
    #3
  4. DAMN_SMOOTH
    Damn_Smooth Win User

    Multi-boot USB that doesnt require CSM on or Secure-boot off?

    Windows 8 Secure Boot Feature: Not So Secure?

    So Linux is switching to secure boot also? Or they have to because of UEFI?
     
    Damn_Smooth, Feb 28, 2020
    #4
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Multi-boot USB that doesnt require CSM on or Secure-boot off?

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