Which keys? If the keys perform a Windows command, they will work no matter which screen reader you are using. If the keys perform specific screen reader commands then they will require the particular screen reader for them to work. The same is true of keyboard commands specific to programs.

For example, the command Windows M is a Windows command. It works in JAWS, NVDA and Narrator and minimizes all open windows and brings the focus to the desktop. Because this is a Windows command, no screen reader is required. A sighted Windows user can use this key combination. Which commands are you asking about?  

I want to see if these keys work properly using a different screen reader.

Hey madison.

Press some keys?

If I understand correctly – have you tried the JAWS key pass through command to do this?

Jaws key + 3.

Okay, all I want to do is press a couple of keys that don’t seem to work with Jaws, can I do this with Narrator?

On Sun, Feb 21, 2021 at 12:12 PM, Kevin wrote:

the current build of windows 10 you start narrator  with keys Ctrl+windows key+enter

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And you can turn it off, if it is on, with that same set of keystrokes, too.

If you've not invoked Narrator before the first time you do you will be presented with a "tour of narrator" dialog, called Narrator Home, which you can simply dismiss, or check the checkbox to never show it again, and then dismiss it.

Other bits about Narrator can be found in Settings, Ease of Access, Narrator Pane.  It's worth taking a look there as you can configure certain things, such as turning off Narrator Home among other things, about its behavior.
 
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Brian - Windows 10 Pro, 64-Bit, Version 20H2, Build 19042

Journalism 101:  If someone says it’s raining and another person says it’s dry, it’s not your job to quote them both. It’s your job to look out the f**king window and find out which is true.

      ~ Jonathan Foster (attributed)