The Microsoft Narator is one of those programs that seem to turn on all by itself; and once it does, it seems impossible to turn off. I have had to research this several times in order to turn off this annoying feature.
Here is how it's done.
Try this: go to Control Panel -> Ease of Access -> Ease of Access Center -> Explore all Settings -> Use the computer without a display. Uncheck the checkbox by Turn on Narrator and click Save.
I hope this helps some.
Good Luck,
Vernon Harris
AVS Technologies Incorporated