win8.1 Upgrade Win10 system prompts "not installed audio output device" How to resolve
The method is as follows:
1, Volume icon--right--Play device--Change the default device try;
2, overall or drive the problem, such as before is good in the update after not, then try to back up the sound card driver;
3, if you want to or not, then you can try to use the Drive Wizard, driving the master, such as intelligent detection drive.
The above is win8.1 upgrade Win10 system prompts "not installed audio output device" solution, this problem generally as long as the installation of a good driver can be resolved. Hope can help everyone.