Set it up about a week ago and transferred my old Windows XP computer with success. Indeed, for the first couple of days my new PC worked well - and still is - apart from the sound, which a few days ago suddenly disappeared completely.
I seem to feel that this occured after an automatic Windows update but this may just be coincidence.
Have exhausted all the avenues I can, trying to resolve this myself including system restore, updating drivers, extensive reading of internet forums etc.
From some of the forums it appears that my issue is relatively common but sadly none of the solutions has worked with me. One suggestion I'm reluctant to try is to restore factory settings - I've just spent the whole week getting my new PC 'set up'!
I hope there's a way to work around my problem so that I don't have to start from scratch again...
My speakers are Medion and as mentioned, did work initially.
PC says they're not plugged in - but I have them connected by a jack to the light-green 'line in' socket at the back of the PC. I've tried disconnecting/reconnecting etc
I have a Realtek HD Audio Manager which I have also gone round in circles with.
I would be very grateful for any help or suggestions with this problem.