Windows 10: No boot options after creating Windows dual-boot

I used to have a dual-boot with Manjaro and Win10 1909, but decided to stick with Windows for the time being and removed the dual boot and deleted the Manjaro partition. However, Manjaro still appeared in my boot options. I recently tried to create another dual-boot with 2 different Win10 builds with the same method i have done 4 times previously but after restarting I am greeted with GRUB secure no matter the boot priority, even if Manjaro isn’t selected as a boot option. I know GRUB can mess up Windows bootloader sometimes, so i assume it’s that, but i’m not absolutely certain.Is it possible

:)

 

Unable to see Dual Boot option

Hi David,

Thank you for being a part of Windows 10.

I appreciate you for providing details about the issue and we are happy to help you.

I suggest you to follow the below steps to change the OS to default and check if it helps:

• Press Windows + R keys from the Keyboard.
• Type msconfig and hit Enter.
• Click on the Boot tab.
• Select the OS from the list and click on the Set as default.

Reference: Refer to the following Wiki article created by J W Stuart on
How to dual boot Windows 7 and Windows 10 Preview.

Redirecting

Kindly let us know if you need any further assistance with Windows. We are glad to assist you.

Thank you.

 

Dual Boot?

I can help here iv had both i used partition magic to split my HDD and i installed vista on one and xp was already on the other only problem is id watch out if i were you for some reason vista does not like to dual boot iv seen this on a couple of my machines and my buddys. so step one have xp installed step 2 find a partitioner of your choice i dont know of any except partition magic and the one included on xp...only thing is i dont think the one on xp will even partition them...then pop in your vista DVD and select the drive of your choice....the only thing i can think of that causes vista to hate dual booting sooo much is that when their are 2 OS's installed xp uses its own prog to list them on boot well vista uses a totally diff boot loader than the previous os's and i think they conflict the problems i hade were the standard missing windows folder missing HAL.dll and the nt one dont remember the name.....that and after your done vista and boot into xp things didnt like to start correctly specially if you scan disk with vista.

 

Dual Booting with Windows 8.1


The procedure below will allow you to boot Windows separately or in dual boot configuration.
Here's what I recommend to do:

1. Disconnect the drive containing Windows 8.1
2. Install Windows 10 with one drive connected.
3. After step 2, reconnect the drive containing Windows 8.1
4. Boot up Windows 8.1. Open disk management and take a note of the drive letter of Windows 10 OS.
   NOTE: if you boot up Windows 10, then take a note of Windows 8.1 drive letter
5. Open Admin command prompt and type: bcdboot X:\windows where X: is the drive letter of Windows 10 (Windows 8.1 if you boot from Windows 10 in step 4)
6. Reboot the PC. You should have a dual boot screen.

NOTE: To break off the dual boot setting, Win+R->msconfig->boot and delete the none default entry on the list.