Hi. My name is***** you for your question and the opportunity to assist.
Can you please open Skype and sign in.
At the top of the Skype windows click Tools>>Options
In the Options window, click Audio Settings
and tell me what is the entry to the right of Microphone?
Thank you. Just to the right of Microphone Array (Realtek High definition)
you should see a little downward-pointing arrowhead.
Can you click on that and change the selection?
Thanks. Can you tell me which version of Windows you are using?
Disregard the pop ups. They're automated. I don't send them and I can't stop them either.
What version of Windows are you using?
Windows 7, 8 or 10?
I need to know your version of Windows.
Thank you. Click the start menu button and open Settings (or click the gear icon)
In the Find a Setting box type: troubleshooting
and open the search result.
In the upper left of the window click View All
Run the Recording Audio
Wrong HP version of what? Did you install something on the computer related to audio.
On your keyboard hold down the Windows logo key (just to the left of the spacebar) and press R
The Run box will open.
In the text area tyep: winver
and click OK and it will tell you.
Right-click the speaker icon in the lower right corner of the screen and select
What items are listed in the window?
Does Microphone Array have a green checkmark on it?
You want the Microphone Array to be the default.
Does it also say the Array is Disabled?
What kind of computer is this? Does it have a built-in webcam?
Thanks. Can you tell me the model number please?
Thanks. Was the microphone working before but not after a Windows update?
Right-click on the start menu button and select Run.
In the Run box type: rstrui and click OK.
System Restore will open. Click Next.
Put a checkmark in the Show More Restore Points box if you see it.
From the list of restore dates select the latest date the microphone was working
and click Next. Click Finish and start the restore.
This will restore your system files to the date the microphone was working
and will not affect your personal files.
Oh, that's not what I expected.
Go here: http://support.hp.com/au-en/drivers/selfservice/HP-Pavilion-13-x360-Convertible-PC-series/10862149/model/11612873
Expand Audio Drivers. You'll see two listed. Download and install the newest one - Sep 6, 2016
and see if that gets the mic working again.