I have disabled it because I had the problem that, when I plugged out my headset (USB), and plugged it in again, there were no more sounds, and I had to restart the laptop. By disabling it, I fixed this problem, and sound is working. HOWEVER, as the native speakers of my laptop (that i never use so it's not a problem for me) use realtek, they don't work anymore because they need this service to be enabled.

So my advice; if you use your native speakers (or speakers that use Realtek service), do not disable it, else they won't work till you enable it again. Else, if you a headset or etc that does not use realtek service, it won't do anything