thats a lot… clean it:
sudo journalctl --rotate
sudo journalctl -m --vacuum-time=1s
also you need to add the pci=nomsi parameter everytime you do a fresh install of any linux distro
and also some usb distros wont even boot if you dont add the parameter during booting into the grub menu … here is a link on how to do it … but you should add this paramater into any live usb you are trying to boot…