1. First, please make sure that your computer has a microphone.

2. If you are using an earphone with an external earphone and a microphone, please check whether the audio interface of the earphone meets the national standard. At present, most mainstream Lenovo computers use two-in-one audio interface of earphone and microphone, which supports China National Standard (OMTP). It is recommended to include headphones of domestic brands and headphones attached to domestic mobile phones.

3. Some computers can switch the microphone directly by pressing the shortcut key, generally F4 (some models need the keyboard "Fn" key to cooperate).

4. If using Win 10 system, please check whether the microphone privacy switch is turned on. Operation method: Start-Settings-Privacy-Find the microphone privacy, open the microphone access rights, and set the microphone access rights for the application you want to use.

5. You can use Windows Recorder to test whether the microphone is normal.

6. If the "Windows Recorder" test doesn't work, please confirm whether the microphone under the system is enabled.

7. If the "Windows Recorder" test is available and some software is not available, it is suggested to consider the problems of the software itself.

8. If the microphone is enabled in the system, but it cannot be used, please reinstall the sound card driver. You can click on the avatar to enter the "Lenovo Business Services" homepage, and consult an engineer online for driving inquiry.

9. Some notebooks can disable the microphone function in the BIOS, so you need to enter the BIOS to confirm whether the microphone of the machine is disabled. If it is disabled, you need to turn it on.

10. If it still can't be solved, there may be something wrong with the machine hardware. Please repair the machine.

* Learn more about the operation skills of computer use and maintenance, and click to enter the "Lenovo Business Services" homepage for more help.