Hello everyone I have this problem for a while now, I have a DELL Inspiron 5577 laptop, running on windows 10 64bit,  for about 2 days I've been trying to solve this problem by my self, this problem first occurred when there is a new windows update and making my audio says "no audio output is installed" and then the problem gone by itself for a while i dunno why,

BUT the problem start coming again i didn't do anything, i'm just using my laptop regularly, when i turn on the laptop there's already an x sign on volume down on taskbar,and there's no "Realtek High Definition Audio" i'm so confused right now, I already tried to install the driver for dell inspiron 5577 on dell website and adding to device manager with add legacy hardware, Realtek High Definition Audio Driver  has showed up but there is a triangle sign on it, "This device cannot start. (Code 10), The request is not supported.",it says 

I've been searching for solution on google and dell community but there's nothing that have worked for me i hope someone can help me with this problem, okay that's all about my problem thank you