Interesting why someone would want to completely disable speaking of those UIA app notifications through NVDA? You can disable them individually right from within the Windows Action Center located in the Systray.

First you here a UIA notification spawned by an app:

1. Press [Windows Key] + [a].

2. [Tab] over to the parent notification app grouping list.

3. Arrow [Down] to the child notification for the app you wish to disable.

4. [Tab] over to the "Settings for this notification" button.

5. Press the [Spacebar] on it.

6. From the pop up menu of options, arrow [Down] or [Up] to "Turn off all notifications for <Name of app>."

Simply Select it, and POOF: no more UIA notifications for that specific app. Have disabled notifications for Microsoft mail, and the Microsoft store. They were really the only notifications that were annoying the heck out of me.

I use Thunderbird as my primary email client.

Using the latest build of Microsoft Windows 10 v2004 by the way.

Hi all,

 

Windows 10 App Essentials 20.06 is now available. In addition to Flake8 related internals work, it brings ability to let NVDA stop announcing UIA notifications from Microsoft Store and other programs if “report notifications” is turned off from NVDA’s object presentation settings. As always, the add-on update is available via community add-ons website and through Add-on Updater.

 

IMPORTANT: in accordance with support policy for Windows 10 App Essentials add-on (supporting a given Windows 10 feature update for at least a year but not forever), version 20.06 will be the last release to support Windows 10 Version 1903 (May 2019 Update/build 18362). Version 1903 was supported by this add-on since March 2019, and it is time to say goodbye from this add-on. But not all is lost: Version 1909 (November 2019 Update) and upcoming Version 2004 (May 2020 Update) are supported (in a way, due to special nature of November 2019 Update, the add-on will keep supporting May 2019 Update a while longer). Actually, Windows 10 App Essentials supports two future feature updates already (more on that later). Nevertheless, for support policy, the next major version of this add-on (20.07) will require Windows 10 Version 1909 (November 2019 Update/build 18363) or later.

 

Also, for people using development snapshots: the last development snapshots before the break will be sent this weekend. The next one after that will show up in July.

Cheers,

Joseph