In order to manually update your driver, follow the steps below (the next steps):

1. Extract the .cab file to a folder of your choice
2. Go to Device Manager (right click on My Computer, choose Manage and then find Device Manager in the left panel), or right click on Start Menu for Windows 10 and select Device Manager
3. Right click on the hardware device you wish to update and choose Update Driver Software
4. Choose to select the location of the new driver manually and browse to the folder where you extracted the driver
5. If you already have the driver installed and want to update to a newer version got to "Let me pick from a list of device drivers on my computer"
6. Click "Have Disk"
7. Browse to the folder where you extracted the driver and click Ok

About Sound Card Drivers:

Usually, Windows operating systems apply a generic audio driver that allows computers to recognize the sound card component and make use of its basic functions.

When enabled by proper files, the characteristics of the sound card (like model, manufacturer, number of channels) are completely available to computers, and all its features are made accessible.

Updating the audio version can improve sound quality, resolve different compatibility issues, fix related errors spotted throughout the product's usage, add support for new operating systems, and bring various other changes.

As for applying this package, ...