Win7 system installation sound card driver failed how to do

            
1, open the Win7 system disk, and gradually enter the Windows folder - system32 folder - Driverstore folder - FileRepository folder in which to find the wdmaudio.inf_x86_neutral … … folder.
2, right click on the administrator to take ownership;
3, enter the (wdmaudio.inf_x86_neutral……) folder, delete all the files in the folder.
4, download and extract Win7 sound card driver manual repair package;
5, copy and paste all the files in the Win7 sound card driver manual repair package to wdmaudio.inf_x86_neutral … … folder inside.
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 more & mdash; — 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.