I've just bought a new Lenovo laptop with Win 10 preinstalled. I want to completely uninstall it and install Ubuntu or another Linux. I don't know yet what kind of protection it has from installing or removing windows, but I figure it's the latest one whatever it is. My question is, can I completely replace Win 10 with Ubuntu or another Linux and are there any difficulties?
update:
I've chosen another Linix distributes and created a bootable usb drive by using my another Linux machine:
dd bs=4M if=/my_linux.iso of=/dev/sdb status=progress && sync
And when I booted and chose "Boot from USB drive" with the name of my usb drive, nothing happened, it just hung for a few seconds and then returned back to the menu where I can choose the boot order.