Hi alejandra_marin,
Welcome to the HP Forums!
I would like to take a moment and thank you for using the forum, it is a great place to find answers. For you to have the best experience in the HP forum, I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I see you were trying to cleanup your computer by uninstalled programs, but you have lost your sound now.
Have you tried running The HP Support Assistant to aid with updates and resolving issues?
Have you tried the Windows troubleshooter?
If you open Device Manager is there a bang on the Audio?
Do you remember what programs you uninstalled?
If you require additional assistance, would you please provide the exact model of HP notebook you have. How Do I Find My Model Number or Product Number?