Hello Virgina,
We regret for the inconvenience. We see that you have AVG PC Tuneup unlimited program. You might have optimized the Sound settings in AVG PC Tuneup program. We request you to undo changes http://support.avg.com/SupportArticleView?urlname=How-to-revert-changes-done-by-PC-TuneUp made by AVG PC Tuneup and check for the issue.
Thank you.
I understand your concern, In this case Please click on the below link to get connect with us in chat session to fix the issue.
https://support.avg.com/support_tech_chat
Your case number is 04513159, Please use the case number for reference.
Hello Virgina,
Please restore all the changes made by AVG PC Tuneup and then check your computer whether the sound is working fine or not.
Thank you.
Hello Virgina,
We regret for the inconvenience. We see that you have AVG PC Tuneup unlimited program. You might have optimized the Sound settings in AVG PC Tuneup program. We request you to undo changes http://support.avg.com/SupportArticleView?urlname=How-to-revert-changes-done-by-PC-TuneUp made by AVG PC Tuneup and check for the issue.
Thank you.
Virginia, check and make sure you did not turn off the sound accidentally on your laptop. It is highly unusual for a program to disable your sound. If your picture of the little speaker on the bottom right of your taskbar laptop screen has a line through it, it is turned off.