Have you tried a spare or borrowed PS2 keyboard (just to confirm it does work) ?
G'day DavidR,
Thank you for your return reply.
I've spend almost 30 mins in the BIOS scratching head until it bleed why the USB keyboard won't work in the bootscan, and speaking about the PS2 keyboard I have ask nearly all my mates to borrowed one to confirmed it does work.
It funny all my mates got UBS keyboards and they all don't used Avast they all used AVG, bummer been using Avast almost 2 or 3 years and never come across the minor problem my old PC was a PS2 keyboard I didn't experience this minor USB problem in the bootscan in a new custom build computer.
DavidR is their away to confirmed the Avast software might be compatable all motherboard USB BIOS program language written inside the Avast software, I know this seem like a real dumb question I've reinstalling from scratch to find the glitch and everything is 100% working instead of the bootscan section.
My old PC is dead gone I should have kept the PS2 keyboard and I didn't realized this minor problem which I have never come across before, it seem I have learnt something new today from old PC to the future PC I've been operating a computer almost 20 years at work. The future PC worries me sometime when I am almost catching my grey hairs
as the year goes by.
Keep in mind this is a home computer not a company work computer when using Avast Home platform.