My Pc Hp intel Pentium 4 Dual core 3.2GHZ does not produce sound after formating it.It shows the message no audio divices found.Ihave tried different Os from Windows xp2, Xp service pack 3,vista and windows 7 nothing changes.
At first when Iboot it with windows7 it produces sound which last for 2 to 3 days.
Rightnow no sound at all.
What is the cause of this problem?
What can I do to deal with this problem?