I have an Intel i7-9700K ─ Why does Windows Update show an available, but optional, update for a 5th/6th Gen Intel Xeon PCIe controller driver? See images for more info. : r/windows
Windows 10 Pro Fails to Recognize All Cores of Dual-Processor Xeon - Microsoft Community
HP Z420 WorkStation, Xeon ES-1620, 3.70 GHz, 16GB RAM, 2TB SSD, Window – PC Retro Shop
HP Z400 8GB Computers - Windows 10 for Less | Build Your Workstation