Linux Mint and Zorin OS work out of the box for most users. Usually the most complicated part is just the installation process (which can be an absolute pain if the starting system has Intel RST, Secure Boot and Fast Boot all enabled). Of course, more advanced users always can run the risk of breaking something (I accidentally broke my system irreparably at one point when I did a dumb and formatted my Swap for some reason and had to reinstall) but that's also true of Windows.