Set Affinity not working ?

I have a surveillance application i sometimes run and i do not want it to use my primary cores. So I unchecked them in task manager "Set Affinity", but they are still being used by the application as shown in HWinfo64.

Do some programs just not abide by this ?

pepanee said:

Here's a possible solution, that may work. Ask for assistance here, if you need help setting that "script" up:
Link

thanks, i'll give it a try