Windows 10: How do I fix 'The system cannot find any bootable devices'?

I have recently installed a new motherboard, cpu, and ram. When I turn on the PC the bios says 'The system cannot find any bootable devices' I followed another thread on here with the exact same issue but their fix did not work for me. New mobo is: Asus z690-p wifiCpu is: i7 12700kfRam is: tforce ddr5 16g x2Existing hard drive is a Toshiba dt01aca100 1TSecond hard drive is a Seagate barracuda st2000dm008.It recognizes then as storage devices but not as bootable.Kevin

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Multi-bootable USB

Hey guys from TPU, couldn't find any specific thread pertaining to the question asked on title. As mentioned, I'm trying to create a bootable USB, but with many specifics boots available.

I've been trying to create one with multiple boot device including one that enables me to run Windows 10 directly on the USB Thumb Drive but to no avail.

The list of bootable images i'm trying to create are

1. Windows 10 (A full OS running from thumb drive)
2. Windows 10 ISO (Bootable disk image for fresh install)
3. MemTest86+

Have tried YUMI or UUI from the website USB PenDrive Linux but as this is my first time, i don't know how am i screwing up or am doing it right.. Anyone got a rough idea on a step by step guide? Thanks!

 

Ipod bootable drive?

I want to know if I can make my ipod a usb bootable drive.. will it mess up my ipod? I need to flash my video card back to normal.. Neros bootable cd gave me an error. I used a step by step guide, but thats another story.

 

System Specs minor revisions and suggestions

Change: Hard Disk(s) to Storage Device(s)
Change: LCD/CRT Model: to Display Device(s):
add an Audio Device(s) = for headsets and speaker set ups.

and as others have suggested before: The option to list more than one system spec