|You need to update adriver for it, as likely native win-10 doesn't include it.|
This link takes you to the genuine realtek site from where you can download it.
Whenever you need drivers always go either to support/downloads section of the manufacturer of your computer and check there first.
If the driver you require isn't there then go the site for the manufaturer of the device itself.
Never go the third-party downloads sources, or avail/use so called driver finder sites (which frequently scan your system and con you into installing all manner jnk and so on)