This is built-in. Select the text field and press Windows-H. https://support.microsoft.com/en-us/help/4042244/windows-10-use-dictation https://support.microsoft

This is built-in. Select the text field and press Windows-H. https://support.microsoft.com/en-us/help/4042244/windows-10-use-dictation https://support.microsoft.com/en-us/help/4042244/windows-10-... It's pretty good for me out of the box, but if it's too inaccurate you can go to Control Panel\Ease of Access\Speech Recognition and click "Train Your Computer to Better Understand You".