Speakers not working

Hey all,

I am fairly new to HP laptops, so hopefully this isn't something silly that I'm missing.

I have just opened up my laptop and started using it for the first time in a couple of weeks. I went to play a YouTube clip but no sound came out. I have the speakers at 100% and the YouTube volume at 100% too, and I started to look at the Control Panel options but none of them really helped.

I have a HP Pavilion 15 and need the sound to work as I use it for work too.

Any help is much appreciated.

Thank you