First, you need to install the Realtek HD audio manager on your Windows 10 device, and then you will be able to find the file. The installation process for the Realtek HD Audio Manager is as follows.

1. First, open the Realtek website on your favorite web browser.

2. Then, you need to navigate your way to the downloads page and then look for the compatible download for your system.

3. Now, click on the download button located next to compatible for your device, and the file will be downloaded to your computer.

4. Open the file and install it by following simple on-screen instructions.

Once the driver is installed on your system, you can search for the Realtek HD audio manager and open it. If not, then you can use this path C:\Program Files\Realtek\Audio\HDA and open RtkNGUI64.exe file to open the Realtek HD audio manager and ticker with the settings a bit.