So I am running W10, version 1803 on an HP Pavilion. This read aloud occurs mostly in email - AOL. In fact, I would say it is 100% email. I could be wrong and will pay more attention, but it has not occurred while typing this message. It is a nightmare. I have gone to ease of use and it is shut off. I also unchecked the block about letting a short cut turn it on. Obviously some glitch. I do not know what triggers it, but I do type pretty quickly and either this device or this software is permitting some keystroke to trigger the read aloud function.
Sometimes I am not able to shut it off. This can't be true that I have to live with this. Sometimes, it seems that using the windows key with enter stops it but more often than not, nothing stops it. I do not believe this was occurring when I bought this machine in May, so it must have been after some update.