Windows 10: How to fix "dual boot" on Win 11 24H2

I have a Dell Desktop Inspiron 3880, with Win 11 23H2 running just fine. Two days ago got a prompt to download Win 11 24H2, which I did. The update began but stalled and the computer “hung” for 2 hours before I manually restarted it. Since then when the computer boots up I get a window which asks for an OS to be chosen. The choices are: 1 “Windows 11 on volume 6” or 2 “Windows 11 on volume 6” yes - identical choices, with an option to “change defaults or choose other options”. If I select #2, the system seems to boot up but comes back to the 2 choices. If I select #1 the system boo

:)

 

want to try Windows 11 24H2 Pro... by Download ISO... in a VMware VM

for a Windows 11 Pro PC to install dual-boot with 24H2 is it needed new license too?

 

Factory reset Windows 11 24H2 (build 26100.863)

Hi, I am Dave, I will help you with this.

There are no currently listed problems resetting version 24H2 of Windows 11 and no specific steps you need to perform, are you experiencing any problems with that insider build that is causing you to perform a Windows reset?

 

Help with dual booting Win 10 and Ubuntu

This is your whole problem. What you should have done is to put GRUB in sdb1 and Windows Manager in sda1 so that Windows Boot Manager is in control.
So what suggested above will not make any difference. GRUB is still in control of booting process.
To fix your problem. You will need to:

1. Move GRUB from sdb to sdb1
   |grub2 - how to move grub boot from one partition to another in linux - Ask Ubuntu
2. Rebuild The Windows Boot Manager ie. create a brand new BCD to boot Windows 10.
3. Once done with steps 1 and 2 above. Windows will not know UBUNTU exists and vice versa.
   Depend on the priority set in the BIOS, it will boot directly into that OS.
   However, you can boot either one from Boot Menu (Using whatever key that your Laptop assigned to: F2, F10....)
   Since I hate Dual Boot and seldom boot into Linux, I will stop here.
   Now, go to step 4 to create dual boot.
4. Use Easy BCD to create an entry for dual boot with UBUNTU. Once done, you should get a nice GUI dual Boot Menu
   and it will boot directly into either Windows or UBUNTU.

Here's the detailed explanation: How can I move windows 10 boot files to another drive to allow linux