HP Notebook - Unable to order (UEFI OS Manager) in BIOS Mode

[Humaaida]

Hello, community

I was having some boot issues from the beginning when I purchased this laptop, it is about BOOT order,

-installed Windows10 on M.2 Drive

-installed Ubuntu 20.04 on HDD

after installing Ubuntu on HDD (i even removed M.2 Drive from the laptop before installation) I plugged the M.2 Drive again expecting two OS on different drives, but the first order of my boot list is (OS boot manager(UEFI) - ubuntu) and I cannot change the order of OS boot manager, more clearly:

this happened even when the M.2 Drive was disconnected before the Ubuntu installation, my problem is I cannot change this order, and every time I start up my laptop I must enter the boot menu to choose windows, how can I change or remove the order?  BTW I can only change between USB or CD or OS boot manager to boot from, it won't change the order between the OS boot managers.

thanks for helping me

[Robozk · Accepted solution]

Try to disable secure boot from bios setup and then change the OS boot order from os boot manager.

Then save the changes.

Hope this will help.

[Humaaida]

it works actually! thank you.

disabling secure-boot enabled "OS Manager" then I needed to enter it's sub-menu and change the order.

 thank you very much 🙂