1, open the Win7 system disk, and gradually enter the Windows folder -system32 folder -Driverstore folder -FileRepository folder to find wdmaudio.inf_x86_neutral…… folder.
2. Right click on the administrator to take ownership;
3. Enter the folder (wdmaudio.inf_x86_neutral……) and delete all the files in the folder.
4, download and extract the Win7 sound card driver manual repair package;
5, copy and paste all the files in the Win7 sound card driver manual repair package to the wdmaudio.inf_x86_neutral…… folder.
6, re-install the sound card driver with driver life: open the driver life & mdash; & mdash; driver update & mdash; & mdash; latest driver & mdash; & mdash; put the device to be updated & mdash; & mdash; point to the right Multiple —— select the version to update.
7, restart the computer, the problem will be solved, if there is still a problem, double-click the small speaker, let the system automatically detect.
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