I have looked repetitively for it and failed to find any reference to F12 but there is an option for Boot Menu which should activate via F12 but does not function in my case. No other key works for the boot menu, and only Del works to bring up the BIOS screen. The key F12 is pressed but no change in the boot start up of Windows occurs.
Starting the desktop again after shutting down, the bottom of the screen on start up says to push F12 for the boot menu and Del (delete key) for the BIOS.The USB has been made into a bootable USB using rufus on windows by burning the 18.04 ubuntu iso image onto it. The Acer Aspire TC-895-UA92 Desktop is not booting from the USB.I am not concerned about dual boot or partitions.
I want to install Linux/Ubuntu on this desktop but cannot boot from the USB to do so.
