Hi. My name is***** you for your question and the opportunity to assist.
This is a BIOS setting that needs to be changed. Can you tell me the brand and model
of the computer?
Find it yet?
Have you seen anything in the BIOS that will allow you to change UEFI boot to legacy?
What version of windows originally came on the computer?
Thank you. Got a model number?
Is it a laptop or desktop?
So, you just upgraded the machine to Windows 10
an now you're getting this: https://www.youtube.com/watch?v=tTSx0sLQNAc
Does your BIOS look like this?