There is no sound every time it is started? Only the sound card repair function of the driver wizard can have sound.

This situation should be caused by the sound card driver you installed without Microsoft's digital signature (WHQL).

.

There is a setting in Microsoft system. For the safety and stability of system operation, drivers without digital signatures are not allowed to be installed by default.

.

So even if you use the driver wizard to forcibly install the sound card driver of the current system, the driver will be automatically blocked and filtered when you open it next time. This will cause the sound card driver to fail, and of course the system will have no sound.

.

It is suggested that it is best to find a sound card driver with WHQL digital signature for installation, so that this will not happen again.

.

If you really can't find a sound card driver with WHQL digital signature, take Win7 system as an example.

You can refer to the attachment →Win7_ driver signature enforcement _ how to disable it. Doctor.

.

.

You can try to boot F8 into safe mode and uninstall incompatible hardware device drivers. That is->; Open the device manager-> Right-click each device separately->; Attribute-> Drive-> Digital signature program->; There is no driver for Microsoft Windows Hardware Compatibility Publisher in >; It is a driver that has not been digitally signed by Microsoft. If there is such a driver in the system, it will cause various problems. ) After starting the computer, you can automatically identify the hardware devices, reinstall the downloaded driver (WHQL) that has passed the Microsoft digital signature authentication, and then restart the computer again to see if there is any improvement.

.

★ Friendly reminder: the driver can be used, not the newer the better. Sometimes just the latest version of the public version or beta driver will lead to blue screen. So don't blindly pursue the new version. Otherwise, after installing incompatible drivers, the system will run unsteadily, and even blue screen of death phenomenon will appear. ☆ If there is no blue screen phenomenon before installing the latest driver, I suggest you uninstall the current driver and restart the computer before installing the stable driver.

.

★ It is recommended that you download and install the driver with Microsoft WHQL certification from the manufacturer of your specific hardware equipment or the driver's home.

.

If you can't find it, just download a driver wizard or driver life, and it will automatically help you find the corresponding driver in the networked state. (★ Note: Be sure to download and install the driver that has passed the (WHQL) certification. )

.

★ Microsoft's explanation about the driver: ① The driver has not been digitally signed, indicating that the driver has not passed the test of Microsoft Windows Hardware Quality Laboratory (WHQL). Installing a driver without digital signature will lead to unstable operation of the operating system and even blue screen of death phenomenon. You can get WHQL-signed drivers from the manufacturers of hardware devices. ② A driver is a kind of software that allows your computer to communicate with hardware or equipment. If you don't have the correct driver, you need to use it.

.

.