@SirW00f is talking about meltdown and spectre. Spectre was removed with a patch but meltdown is part of the hardware of the CPU and cannot be removed and yes it's from the hacked NSA hacker files or whatever they called it. People basically found out that Intel was working with our intelligence services mainly the NSA and FBI to put spectre and meltdown on their own CPUs before they even ship them
4k is being used to try to force upgrading GPU and CPU wrongly. It works fine at 30hz with almost all old video cards. However Microsoft does all it can to make it not work. It is very difficult to make it work. You can it is just nearly impossible to find out how to do it.
