The problem started approx one week ago (Oct. 12?)
I tried to do what you adviced above. Turned off and on my PC, but found nowhere to write System Restore. Please be more spesific, step by step.
In the process I lost you as I didn't know you also sent E-mails.
Look forward to hearing from you.
I right-clicked the mouse and got to "Open Windows Explorer". Then set Restore System in search area and set date to Oct 8 (to be on the safe side). Still no sound. in loudspeakers or earphones. Should I leave Restore System at Oct 8?
THE NUMBERS ARE: 320-140-020