Latitude E6430 not showing Bios Dell Logo screen

It used to a couple of days ago. I have Windows 10 and had to do a refresh of the OS and now I don't get the Dell logo on the screen on startup. I can't hit F2 and go to bios. Can't hit F12 to go to boot option. On startup I get a slightly lighted screen for 2 seconds and then off to Windows 10 Desktop. Computer runs fine from there. No bios startup screen. Any ideas why this happened and how to get back to normal?