Acer Aspire A515-43 - No devices listed in bios boot menu
So I had a dual boot windows 10/Ubuntu setup. I deleted the Ubuntu partition so I could expand the Windows partition, and now I want to reinstall Ubuntu in the available space. I have the Ubuntu installation ISO on a usb thumb drive. So I want to set the boot order to boot from the USB drive first before the hard drive. I go to the bios boot menu and there are no devices listed. The only things listed are an option for Secure boot and the old bootloader option list (1. Windows Boot Manager, 2. Ubuntu, 3. Linpus Lite). There are no devices like HDD, USB devce etc. Disabling/Enabling Secure Boot makes no difference.
I have an Acer Aspire A515-43 with InsydeH20 Setup Utility.
So how do I view and edit the device boot order ????