Windows 10: Speaker Echo and Feedback

A friend of mine was messing with the sound options on my HP Laptop, and now whenever I try to use my speakers there's an echo. There's also a horrible feedback that comes when I turn up the volume above a certain point. I've tried everything I can think of, and none of the settings I seem to mess with help. Can someone tell me what the default settings are? Everything was perfectly fine until he tried to connect his airpods to my computer and use earphones at the same time.


Thanks!

:)

 

Amazon Echo

I want to use the Echo as my primary speakers. I had it connected after reinstalling the bluetooth devices, but after restarting the computer this morning, the sound is not working. I see the Echo listed as a speaker, but I cannot click the speaker as
an option.

 

audio echo in speakers

how do i stop the echoing in my speakers during video playback or youtube playback

 

Echo from Speaker/Mic

I'm on Windows 10 on a 1 year old HP laptop. When I have the integrated Speaker/Headphone (Realtek (R) Audio) enabled I hear noise all the time and an echo when I speak/use the keyboard etc. I've tried muting my mic and muting speakers etc. Troubleshooter,
Cortina, etc but if I mute either mike or speaker I can't then use Skype or Zoom. As soon as I unmute the speaker the echo is there again. It was fine until last night when I tried to use with external headphones. (No longer attached). As soon as I switch
laptop on if not sound not muted. Every sound is picked up and echoes. Any idea what I need to do to fix this? Thanks