i’m screaming help! I have lost all the speech on my computer.

I have Windows 11 on my Acer computer. A couple days ago, alt F4 stopped working to close out webpages. Then, it stopped working to close out anything. Then, NVDA disappeared, and I could not get nearer narrator to start. I rebooted the computer, and used Seeing AI to read the screen. I was able to login, but again nothing would talk. What in the world is the problem?