There are three ways to turn the Narrator on or off:
In Windows, press Windows logo key + Ctrl + Enter on your keyboard. In earlier versions of Windows, you may need to press Windows logo key + Enter.
On the sign-in screen, select the Ease of Access button in the lower-right corner, and turn on the toggle under Narrator.
Go to Settings > Ease of Access > Narrator, and then turn on the toggle under Use Narrator.
How to use it:
You can use the Tab keys + Arrow keys + keyboard shortcuts to control the laptop.
In Windows, use the Tab or arrow keys to move around apps and web pages. When you get to something you want to use, like a link, press Enter. You can also use the Tab, arrow, and Enter keys to move between and interact with things like checkboxes and buttons.
For more information about Narrator, please go to: https://support.microsoft.com/en-us/windows/complete-guide-to-narrator-e4397a0d-ef4f-b386-d8ae-c172f109bdb1#WindowsVersion=Windows_10