Screen Reader reads same script when I startup

This is a very strange error that I've been having, but when I start up my computer and get logged in, screen reader seems to read the same script over and over again.

What key did I accidentally press? Just wondering. More importantly, how can I get rid of this annoyance? I don't need screen reader, really but I'm sick of hearing the same thing over and over, and well, sick of hearing anything, period.

I may have answered my own question. I booted up my computer again, really listened to it and it announced "Subsystem Screen Reader On". This time, there was nothing said after that, so it must record everything from the previous session in terms of notifications, and there were not my previous Windows session. Some of the notifications are pretty repetitive, for instance, I have the same person who Facebook Pokes me. I suppose that's why I thought it always repeated the same thing.

Window Key + CTRL + T toggles it on and off. I'm not sure when I would've pressed this combination but I might have at some point inadvertently.