Vista - Desperatley Seeking Sound

The Voulume on my computer has shut down whenever i click on voulume icon it says(No audio input device is installed) i have tried everything there is to try and i have come to the conclusion that i have to uninstall/install or repair vista somehow. vista came installed on the system but i dont have the discs that came with cpu is there anyone who can help

CPU:
Intel® Pentium® D 820 Processor (Dual-Core)
64-bit processor with Intel® EM64T Technology
Each core operates at 2.80GHz | 2 x 1MB L2 cache | 800MHz FSBOperating System: Genuine Windows Vista® Home Premium
Chipset: Intel® 945G DH (Viiv™) Memory: 1024MB DDR2 dual channel (2 × 512MB), 533MHz (PC4200)
Expandable to 2GB
2 DDR2 Slots (Total) | 0 DDR2 Slot (Available)Hard Drive: 250GB SATA II (7200rpm, 8MB cache)Optical Drive: DVD±RW 16x Multiformat Dual-Layer Optical Drive
Up to 8.5GB with Dual-Layer Media
Write max: 16x DVD±R, 6x DVD-RW, 8x DVD+RW, 4x DVD+R DL, 40x CD-R, 24x CD-RW disks
Read max: 16x DVD-ROM, 40x CD-ROM disksMedia Reader: High-Performance 15-in-1 Digital Media Manager™
Up to 40x faster
xD-Picture Card™, CompactFlash® I (CF), CompactFlash® II, Secure Digital™ (SD), Mini Secure Digital™ (Mini SD), Multi Media Card (MMC), Reduced Size MMC (RS-MMC), MMC Mobile, MMC Plus, Memory Stick (MS), Memory Stick Duo, Memory Stick Pro®, Memory Stick Pro® Duo, SmartMedia, IBM MicrodriveVideo: Intel® Graphics Media Accelerator 950
Up to 224MB of shared video memory
PCI-Express® (PCI-E x16) slot availableSound: 6-channel (5.1) high-definition audio
Amplified Stereo Speakers (USB Powered)Communications: 56K ITU V.92-ready fax/modem (RJ-11 port)
Intel® 10/100Mbps Ethernet LAN (RJ-45 port)Peripherals: Premium multimedia keyboard, 2-button wheel mouse (PS/2)Ports/Other: 6 - USB 2.0 ports (2 in front, 4 in back)
1 - VGA
1 - Parallel port
1 - Serial port
2 - PS/2 ports (keyboard and mouse)
3 - Audio (Rear): Line-in/Side (Stereo), Front/Headphone (Stereo), Microphone
2 - Audio (Front): Microphone, Front/Headphone (Stereo)
1 - RJ-45 Ethernet port
1 - RJ-11 Modem portDimensions: 14.50" (H) x 7.25" (W) x 16.50" (D)Weight: 21.2 lbs. (system unit only)

Hello tlittle86,
Have you tried a system restore to a point before the sound went ?, if that does not work dont worry, you can alway's get the driver's from the maker's site. Do you know who's sound card it is ?, chance's are it's realtek, or soundmax, anyway try the restore and post your result's good luck.

tried to use restore point it didnt work. driver is sigma tel tried to download it but it didnt work

tried to download sound card midway thru the process i got an alert it said device object not present

Ok, no prob's, we need to get some more info,
on desktop right click my computer,
click on properties,
click on device manager,
first, are there any yellow question marks ?,
on "sound, video and game controllers" click on the +,
what is listed there ?

next, go to control panel and open sound, you should see sonething like this,



What is listed there ?,
last of all we need to know the model of sound card you have, sigma tel make an awful lot of sound device's, so a model/type will help us find the correct driver.

I went to device Manager Clickecked the + which linked off to realtek HD Audio i right clicked on RHD audio clicked on properties and it said This device cannot start. (Code 10)

*When I went to device manager i went to add hardware and added the realtek HD Audio Driver

I opened up the sound and there is nothing in the Sound Box it only says no audio device installed



Sigmatel HD Audio Driver
Version 6.10.0.5274

I just uninstalled RHD audio driver now there is nothing

Code 10 is driver related. First un-install all your sound drivers, you may want to clean up your registry, download Ccleaner, (it's free, link below) and clean the registry, BACKUP YOUR REGISTRY WHEN PROMPTED. follow the Realtek link and download these sound drivers, tick the box and press next, they are the top one's "vista/windows 7". Install these and post back.


Realtek

CCleaner - Download

downloaded driver re booted cpu still no sound. waas there a step i was supposed to follow after that?

tlittle86,

Could you please provide a snip of the Device Manager with "Sound, Video and Game Controllers" expanded?