MattO1973 :
I want to build an Intel powerhouse but I want to run Windows 7 and not sure if the Core i7 6800k or the core i7 4790k will continue to get support from Microsoft, I understand Skylake and Kaby Lake will not, but unsure about Broadwell E
For consumers Intel will provide Windows 7 support for CPUs through Kaby Lake, including Core i7 6800K and i7 4790, until 2020 [a Kaby Lake CPU will be required to be in a 6th generation Motherboard that has a BIOS update to run Kaby Lake, after sometime projected to be mid 2017 when MS is suspected to upload software to disable support for 7th generation motherboards, it is the 7th generation motherboards that Windows 7 will not have support from MS]. After that date, on 6th generation motherboards and earlier just keep your old drivers for old hardware, and use drivers from manufacturers for new hardware and use a good anti-virus, such as VIPRE or other good program, and keep you system clean using CCleaner [ you should be using that latter two types of programs even now.]
I know the above is a little wordy, however, MS makes things complicated, it seems to be in their nature.