There are a few ways to change your startup sound but we will be considering only the best and cheap way to do it.

We are talking about using an app and the app we will use for this is winaero.
The Download link should come after the post.
Inorder to change your startup tone, just follow these instructions

1. open file after installation.

2. After launching the program

3. On the left pane just like in the screenshot below

Please Read More At https://naijtecho..com.ng/2017/12/how-to-modify-your-windows-startup-tone.html