ACPI errors and other issues while installing Ubuntu or Mint on MSI laptop

I've tried to install Ubuntu and Mint on my MSI GL62 laptop with only temporary success. I have two issues. First is about ACPI errors, and in the second is this strange laddering of "OK" output, which didn't happen on the first installation (which probably was just fine).

Also, when I open Ubuntu or Mint for the first time (ignoring the errors) the screen freezes and nothing happens.

This computer has Windows 10 on it.