Dual-boot question

1. You could have an esp on each disk with bcd entry pointing only at the os on that disk. Then select which disk to boot from using one time boot menu key ( iirc it is F8 on asus)

OR

2. you could add the entry for the os on the other disk to each bcd store. Then whichever disk you boot from, the windows boot menu will show the choice.

I think you are asking for number 2. It is the way I do it.

For example
you are currently booted into C
the os on the other disk is H

to add an entry for H to the current bcd store:
open admin cmd prompt and type:
bcdboot h:\windows
(then press enter)

To add an entry for your currently running os (C ) to the bcd store on the other disk:

Find the letter ( if there is one ) or the device path for the esp partition on the other disk ( diskgenius will tell you )



open an admin cmd prompt and type:
bcdboot c:\windows /s device path

Therefore if the device path for the esp partition on the other disk is \Device\HarddiskVolume6

bcdboot c:\windows /s \Device\HarddiskVolume6

Thanks, SIW2 - you're a true Guru
So the ideal way to have both systems aware of each other would be to boot with both of them mounted?
How about if I booted from an independent USB drive then did a BCD manipulation of both via command line?

Is there any reason you can't have both SSDs mounted in the PC and then boot to Windows 10? When you are in Windows 10 use EASYBCD to add an entry for Windows 11 in the boot menu. The next time you boot there will be a boot menu with selections for both Windows 10 and Windows 11.

EasyBCD
EasyBCD - NeoSmart Technologies

It is free for personal, non-comercial use.

I don't have dual-boots for Windows 10 & 11 but do have two computers which have dual-boots of Windows 7 and 10. Here is an example of the setup for one of them using EasyBCD. Note Windows 10 is on the 1st SSD while Windows 7 is on the 3rd SSD.

Revised version, fixed the things I had forgotten

19045v2.iso

Best extracted to usb stick because the programs run from usb.

Simplest way is extract the 19045.iso to usb using Usb7ice.zip





**************************************************************************************************** **




OR

if you have a ventoyed usb stick copy these three onto the root of the big ventoy partition




And copy the 19045.wim from the iso sources folder onto the root of the big ventoy partition



so the ventoy partition has these on the root



NOTE: ventoy users will need to add the wimboot plugin if they havent already .

Very easy just d/l it from here ventoy_wimboot.img

and copy it into the ventoy folder on the small ventoy efi partition

@teckneeculler

Couple more adjustments it is 19045v2.iso now