can't boot from cd or usb

Thank all of you for the replies. Sorry for being slow getting back, but got a little busy here. I followed dalchina's post & was able to get win10 loaded. Since the f-keys are not working I was able to enter bios through windows by pressing shift as I restarted the PC. Now I'm trying to get the F-keys to work. I can't find a FN key on the keyboard. I might see if it's locked in bios. I'll let you know how that goes. Thanks again

Desktop PCs don't have the <Fn> Key!

If you're having problems with the keyboard, there're programs for testing it, like AquaKeyTest ( Download Aqua's KeyTest ).

FreeBooter said:

Here is how you can install Windows 10 from ISO without needing any USB flash drive or DVD.

Thank you for the tutorial, is useful!