You can find generic drivers on the Realtek Download Page under "PC Audio Codecs" > "High Definition Audio Codecs". Note that these generic drivers may lack the custom EQ presets added by your PC brand.
lost equalizer tab in Realtek HD audio manager - Microsoft Q&A realtek audio equalizer windows 10 download
Finding a can be confusing because the traditional "Realtek HD Audio Manager" has often been replaced by the Realtek Audio Console in newer systems. While many users search for a standalone equalizer, the EQ is actually a built-in feature of the Realtek driver package provided by your hardware manufacturer. How to Download the Realtek Audio Equalizer You can find generic drivers on the Realtek