Why doesn't sound work on my laptop Lenovo

Hello! Please help me figure it out.

I had a laptop Lenovo, it was a native one Windows 8, I demolished it and installed Win 7. There were a lot of updates, and I installed everything in turn. And at this time, the sound disappeared, then returned again. In general, how I turn on the computer, it may or may not work. I installed everything, but the sound also disappears. Do not tell me what could be and what to do?

Maxim

Expert answer:

Hello, Maxim!

Through the 'Device Manager' remove the driver for the audio equipment and download the latest drivers for the audio adapter and chipset from the official website of the laptop manufacturer.

The problem, with a high degree of probability, lies in the 'crooked drivers'.

Your question was answered:

Avatar Andrey PonomarevProfessional assistance in setting up, administering, reinstalling any programs and operating systems of the family Windows.

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