Error loading operating system

[janlin0116]

Hi, nice to meet you guys. Here is my build.

CPU:i7-9700k
MB:Gigabyte Z390 Aorus Elite
RAM:Crucial DDR4 2666 16GB*2
SSD1:Samsung EVO 970 plus 250GB (for OS)
SSD2:Samsung EVO 970 plus 250GB (WIN10 installed)
GPU:MSI RX580 8G (bought, still on delivery)
POWER: Antec 650W
CASE:NZXT H510

Now I'm going to install 10.15.4 and have completed the STEP 2: Create a Bootable USB Drive with UniBeast .
However, when trying to setting bios and booting from the USB, screen showed "Error loading operating system."
And I've started again from erasing the USB and creating the bootable USB drive. But I still stuck in the same place.
At the step of setting bios, I can't hardly find all the suggestion, only loaded optimized defaults and disabled CPU VT-d.
If someone built with the same MB successfully, please sharing your bios setting or any other helpful advice.

And, for SSD Samsung EVO 970 plus, I know I didn't do the best buying suggestion...but I find some articles about updating the firmware can solve the problems maybe...

First time to post here, if I do something wrong, please let me know and thank for your reading or help.

 

[flordetoxo]

I have the same problem ,same haward. her please

 

[phunguss]

Is your mobo set for UEFI booting instead of LEGACY? Did you create your UniBeast in UEFI or Legacy mode?