I want to install Debian + KDE on my MSI laptop(Gl62M 7REX model) having 128GB SSD as primary storage(windows 10 installed currently) and 1TB Hard disk. I tried installing by disabling the fast boot on the BIOS, disabled the secure boot on the BIOS but after booting the USB stick, I started getting an error saying that the wireless drivers cannot be found, which is necessary for connecting to wifi and downloading the KDE plasma from the network.

I even tried installing Kubuntu and Ubuntu 18.04LTS, but I started getting errors saying Casper not found, kernel loaded earlier something like that.

I really need to install Linux distro on my laptop and remove Windows as I have some academic needs that require the use of Linux. I don't want to dual boot my system.