Problem

You wish to temporarily reset the notification history and rules for testing the feature.

Resolution.

1. Press Windows+R and enter the command below and press ENTER:
   %AppData%
2. Then navigation through to the path similar to this but accounting for the username of the currently logged in JAWS user eg: "C:\Users\username\AppData\Roaming\Freedom Scientific\JAWS\2022\Settings\nofitications"
3. In this folder you will find two files:

Notification.rules.json 
Notifications.json 

4. Take a copy of these files and store them somewhere safe then delete them from the above location.
5. You will now have to restart JAWS for changes to take effect.