Hi Todd
I am Dave, I will help you with this.
You have a 6th gen Core i7 6700K, it is only some 7th gen and all 8th gen processors upwards that are supported, below is the list.
https://docs.microsoft.com/en-us/windows-hardwa...
You have two options, you can still install Windows 11 on an unsupported processor using the ISO, Microsoft strongly advises you to not install Windows 11 on unsupported hardware, the other option is to contact your PC manufacturer to see if your processor can be upgraded.