I've been running 16.3 successfully on a HP ProBook 6730b for a while. Today I tried to make a fresh install with 17 but when I press Esc during boot to reach alternatives nothing happens and I can't proceed to boot order och BIOS setup. Same thing with F9, F10 etc.
I then tried install 16.3 and it boots fine, went back to 17 and it hangs again.
I've tried various settings in BIOS and downloaded 17 again.
It sounds like either a corrupted download (you can check by letting it run through the check during setup) or your BIOS is set to boot to UEFI only and your USB (I assume) format is not compatible.
I'd suggest either using Rufus and choose UEFI or BIOS option under the Target System or using Ventoy.