Let Windows Update find it automatically. After restart, go to Settings → Windows Update → Check for updates. Optional updates may include the Realtek driver.
Uninstall any existing audio drivers to avoid conflicts.
Here’s a ready-to-post guide for a forum, blog, or Reddit. Choose the version that fits your tone. Title: Realtek Audio Driver Windows 10 – Clean Install & Fix Guide
Drop your PC model or motherboard name below if you need a direct link. Title: 🎧 Realtek Audio Driver – Windows 10
Download directly from your motherboard/laptop manufacturer’s support page (NOT Realtek’s generic site – their generic drivers often lack OEM customizations like the audio manager).