i have the this problem with "fortniteclient-win64-shipping.exe" give me "0x62) ERROR setting process CPU affinity when i try to exclude cpu 0 and only use cpu 1-15... anyone can help me with this???
That is most likely caused by an anti-cheat system that is protecting the game process from modification.
You can confirm by trying to set the CPU Affinity through Task Manager, which should show an access denied error.
There is unfortunately no way to work-around this.
Until now, it seems that no one has a solution for this problem. No hope