To set your preferred web browser as the new default on Windows 10, use these steps:
1. Click the Start button and select Settings.
2. Click on Apps.
3. Click on Default apps.
4. Under the "Choose default apps" section, click the current default web browser and select the browser you want to make the new default. For example, Microsoft Edge, Chrome, or Firefox.
Once you complete the steps, the previous browser will continue to be available on your device, but when an app needs to open a web page, it will start with the new application you specified.