If you see Select boot device option, and the screen asks you to select UEFI Boot sources, then this post will help you confgure the correct boot source.

I have this dual boot Windows 10 / Ubuntu something box. The separate OSes are on separate SSDs and I just select which one to boot from the bios. For practical reasons I'd like to do this from ...

If you see a Reboot and Select proper Boot device. Or Insert Boot Media in Selected Boot device and press a key message on Windows 11/10, see this fix.

Some HP utilities have their own settings for preventing the program from running at startup. Look for "Options," "Settings" or "Preferences" and uncheck the "Run at Startup" option.