From ZDNET.com…..
Microsoft’s latest preview of Windows 10 includes a new and easier way to set a display’s refresh rate beyond the standard 60 hertz.
Windows 10 already allows you to select a higher refresh rate, but in Windows 10 20H2 – which should be due out soon – the Advanced Display Settings page has a new option to change the refresh rate from a drop-down menu right in the Settings app.