Good day!
On the home computer the sound was gone. The computer of the parents, therefore, who installed / uninstalled is unknown for certain.
“Nobody did anything, it’s itself”, as usual :)
When studying a problem, I discovered that the IDT High Definition Audio CODEC driver is marked with an exclamation mark in the Device Manager. 
First launched an automatic check. Immediately I will say what was the point 0.
Then I downloaded the driver myself and tried to install it manually, and I received a message that I didn’t need updating. wow
If someone faced this problem or knows what to do, I will be grateful for any information.




сведенияtab, select theИД Оборудованияproperty. Watch on VEN_1234 & DEV_1234 1234 - some digits in hexadecimal format. VEN - vendor_id, DEV - device_id - Sergey