Hello, before I get started I would like to say I'm a complete noob with Linux in general but anyway I keep coming across an error which is stopping me installing arch Linux. I've been searching online for 5 days straight hoping someone else has had the same problem, I found a few but did not give me any information on how to fix or get around this problem.

I've been following the arch Linux guide and YouTube hoping one of them will work but nothing never did.
Here is a screenshot (I took this in a VB but it's the same if I boot from a USB)
https://i.imgur.com/ziAcX1p.png

I have internet connection plus I'm using the Ethernet straight from the router to my computer.
https://i.imgur.com/n1kjuAh.png

I have no clue on whats going on but I truly hope that you guys could help because this could help someone else who as the same problem thanks

with respect to this guide (and you should follow it slavishly, and use no other), at which step does this happen?
and which .iso are you using?

fwiw, it looks like you have internet connectivity alright, but are missing some pgp keys for the repo databases.

1 members found this post helpful.

Depending on where you are in the world, mirrors are a major consideration - pick one close.

You are not in the chroot in your screenshot if memory serves pacman doesn't like running outside of it

Have you pacstrapped yet? If so process to the point where you arch-chroot /mnt THEN try pacman -Syu

Why are you in the Arch iso? You should only be running that command once you have Arch Linux fully installed.

Do what you need to in order to get your drives/partitions sorted, then:
# "pacstrap /mnt base base-devel" (this will dl & install the base Linux system)
# "arch-chroot /mnt"
Then go through the rest of the installation process...

If you would've been inside of your actual install instead of the iso, I would've suggested updating the mirrorlist to what's available for your country on the Arch wiki's mirrorlist generator. Copy & paste all text the generator offers up and replace ALL text inside:
# nano /etc/pacman.d/mirrorlist
And I wouldn't unmark more than 5 chosen mirrors.
You can also add more you know (like "archlinuxfr"), enable multilib or testing repos, etc., by editing:
# nano /etc/pacman.conf

I also prefer running the following command for updating/resyncing/refreshing everything at the same time anyway (pretty much every couple days I update my system & run it):
$ sudo pacman -Syyu

The Arch wiki and search engines like DuckDuckGo & Google (even video walkthroughs on Youtube) are your friends bud