Windows 10: how can i change boot order when there is NO other choice but the Windows boot?

I have a brand new ASUS A15 laptop. I mostly use Ubuntu as an OS. Alas, my machine does NOT have any way to change a boot order as there is ONLY the one option; the windows boot. How can I get my machine to do another boot option to a USB?

:)

 

Windows Booting beep!!

Check the boot order in the BIOS also, it might not have the hard drive as primary in the boot list.

 

Changing the boot order  

I was able to change names, used "add last" to move disk 3, with the lowest boot priority, to 3rd in the boot list, and also added Macrium to the boot list

after which, msconfig changed from this

to this

but C:\ is still not on the top of the list. So I haven't achieved the goal of reprioritizing the boot order. However, Macrium has become a factor. If I go into the Macrium recovery environment, and choose which disk to boot with, even if it already the default boot disk

The boot menu revert back to the way it originally was,

and if I don't choose to change the default OS, and let it time out

the system will boot to Disk 3 and msconfig is now back to this

So where do we go from here. Why is Macrium stuck on Disk 3 and this boot order? Can we manage Macrium to conform to the plan?

 

Boot order changes after a while

I'm currently dual booting on my laptop Windows 10 and Linux, each one on a separate disk. My default boot order is Linux first then Windows, however, if I boot windows multiple times, it will automatically change my boot order so that Windows is the default. I have changed multiple times the boot order back to Linux in my BIOS, and Windows will still change it back.

I have tried changing it in msconfig, however, Linux does not appear in the list and I've already tried this guide

[Fixed] No Grub Screen in Dual Boot, System Boots in Windows

This is incredibly frustrating and I just want to be able to have my boot order the way I want it without Windows changing it