I bought a used laptop
previously it had Windows 7 on it
and now Windows 10 and there's no sound even though I'm shown that everything works I have also installed all drivers, it may be that I should switch the laptop back to the original version Windows 7
Did you set the output correctly?
How do you mean?
Like output when the speaker is in the laptop
If you click on this sound thing at the bottom right, then you can select the output above if you have multiple devices.
It's best to look at your phone with sound, otherwise there's a text instruction in the video description
Go to the manufacturer's website of the laptop. Download and install the drivers there.