Microsoft kernel acoustic echo cancell

Device Manager - microsoft kernel acoustic echo canceller appears on the sound card. How should this yellow exclamation mark be solved?

Right-click on My Computer Properties→Hardware→Device Manager→Select microsoft kernel acoustic echo canceller item and then→Update Driver Follow the general steps→Select Update from list→Select Do not search→After microsoft kernel acoustic Echo canceller and then the next step. If there is no sound, type it in the run: net start "windows audio" (with quotes), after entering, make sure to start the sound service.

Another possibility is that the file on the hard disk is damaged. It is also easy to open the corresponding disk partition damaged by the file, then right click on the tool to start checking and select automatic repair file system error, if the system is located After the drive letter is restarted, there will be a period of scanning the disk. After the scan, it will automatically restart, and wait for the restart.

Others: Computer software and hardware application network (http://www.45it.com) from the network search found that there may be the following possibilities:

network name, ip conflict resolution, If it is in the LAN, it is likely that the ip conflict, and the network name, modify the ip and computer name, you can