Two days ago it was working.Yesterday I turned it on no sound.I found my headphones today and they work.There is a red speaker icon above the key pad that I think means the speaker is muted.When I tap on that icon a volume scale appears on the screen.Tap it ,sound off ,tap it again sound on(I have volume set at 100%)The red speaker icon stays on no matter how many times I tap it.The scale on the screen says it turning on and off,the red icon says its not.It does turn off and on the headphones.I cant remember when was the last time I used headphones on this computer that is almost 3 years old.
Since this recently happened, two things to try.
1. Use the System Restore and restore the PC back to a date when it worked OK. If that does not work, System Restore has an "undo" option to undo the System Restore.
2. If the System Restore does not work, Uninstall the sound in the Device Manager - RIGHT Click on the entry for the sound device and then LEFT Click "Uninstall". DO NOT check the box to uninstall the drivers. Restart the PC and when Windows starts it will detect and reinstall the sound.
Computer type PC/Desktop System Manufacturer/Model Number My Own Build OS Windows 7, 64 bit Home SP1, Win 8 Pro 64 bit CPU Intel i7 3770 Motherboard Gigabyte GA-Z77X-UD5H Memory 16GB GSkill Ripsaw F3-14900CL9Q-16GBXL Graphics Card Sapphire HD7770 Sound Card RealTek Monitor(s) Displays Viewsonic VA2448 Series 24" LED Screen Resolution 1920X1080
Keyboard Kensington wired Mouse Logitech Wireless PSU Antec High Current Gamer HCG-620M Modular Case Coolermaster HAF XM Cooling Corsair H80 Liquid cooling with aftermarket Nexus quiet fans Hard Drives 240GB Intel 520 SSD for Win 7
128GB OCZ Vertex 4 SSD for Win 8
1 TB Seagate drive for backup Internet Speed 40 MB/sec (Cable) Antivirus Microsoft Security Essentials and Malwarebytes Browser I.E9/Firefox Other Info Sonar X2 Professional 64 bit Recording Software with Roland Octa-Capture and MAudio Fast Track Ultra 8R recording interfaces, Frontier Tranzport wireless control unit, Behringer BCF2000 Control Surface.
Five USB connected optical drives for CD Audio production using Nero 11
Other systems: Desktop with i5 3550 CPU, LenovoZ560 Laptop with Win 7 64 bit HP, SP1, new iPad
Didn't try to restore,lost all but one restore point late Sat.(I don't know how I managed to do that) I uninstalled the 2 parts of the sound control,it works now.Thanks a lot. By the way,3 years ago I didn't know how to turn on a computer,much less all the stuff I tried over the last 2 or 3 days.Thanks again