It requires power cycle because it needs to reboot to apply the settings....
Also you actively have another thread for this issue?
Go into BIOS and restore settings to default and reboot. It should override risen master's configs if it is stuck at 4 core for some reason...
Also, it looks like you did an update to windows 10 instead of a clean install? Ryzen won't work correctly if its been brought over from an intel build.