Windows 11 4% idle CPU usage on i5-6600k : r/Windows11
Report: Intel Core i7-6700K and i5-6600K Retail Box Photos and Pricing Leak - PC Perspective
Decided to update my Intel i5 6600K to AMD and bough refurbished MSI MPG Gaming B550 motherboard and new Ryzen 5 5600 both from Newegg. Reset BIOS and in Windows my PC