Audio appear and Disappear after restart

Descrição: 1. download do driver 2. descompacte os drivers 3. Instale no seu computador parabéns Follow this guide, only after your audio driver installed and your audio sometimes appear after restart and sometimes not.

click start>on search column type "service">choose services> then windows will ask your permission.. click continue..>

then search for audio service..> press a right-click..> choose restart> then audio service will do a restart.