Various tests of the Ryzen Threadripper 3990X processor showed that for its normal operation it is necessary to use either Linux, or Windows 10 Pro for Workstation or the Enterprise version. Other versions of Windows 10 are simply not capable of loading 128 threads in normal mode.
However, AMD itself insists that Windows 10 Pro for Workstation and Enterprise is an excess, since Windows 10 Pro will be enough.
“We would like to clarify that AMD officially recommends using Windows 10 Professional or Linux with the Ryzen Threadripper 3990X CPU. Older versions of Windows 10 do not provide additional performance or compatibility“
One would think that AMD simply did not check the difference in performance between different versions of Windows 10, but there is a nuance. According to a source, recently Microsoft, as we expected, added normal support for 128-stream processors to Windows 10 Pro. It appeared in Windows 10 Pro version 18362.592. So, really, it’s quite simple to install the latest updates and use Windows 10 Pro normally. Although Linux still better reveals the potential of this CPU.