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Everything WAS fine..I have absolutely NO sound and nothing changed....Where can I begin to figure out why?

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In addition to the good suggestions from , and , here are the less-obvious checks that often distinguish a hardware fault from an OS/configuration problem on XP-era systems.

Confirm the OS is addressing the correct playback path: the system can be routing sound to an unused output (SPDIF/HDMI) or a disabled device. On XP, verify the default playback device in Control Panel -> Sounds and Audio Devices -> Audio, and open the legacy mixer to confirm nothing is muted or set to zero. Check the Windows audio infrastructure too: the Windows Audio service must be running and Plug and Play should be enabled. Useful run/management entry points:

Start -> Run:
sndvol32
services.msc
eventvwr.msc

Inspect the System log in Event Viewer for audio-driver errors around boot time.

Hardware/firmware causes to rule out next: confirm onboard audio is enabled in BIOS (many motherboards allow disabling the codec), test the rear panel speaker jack (front-panel jacks can mechanically mute the rear outputs), and make sure powered speakers/amps are actually on. A quick hardware-isolation trick is a cheap USB audio dongle — it bypasses the onboard codec and proves whether the problem is OS/driver vs physical audio hardware.

If the problem persists after those checks, remove any ghost audio devices (Device Manager -> View -> Show hidden devices), uninstall the audio entry (choose to remove driver software if present), then reboot so Windows redetects the hardware or install the vendor driver from the motherboard/sound-card maker. As a final diagnostic, booting a live USB environment will tell whether sound works outside Windows; if it does not, the issue is almost certainly hardware/BIOS.

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Member Avatar for jingda

Have you try using another earpiece to test whether you can hear any sound. Just to clarify, is it the audio port that is causing the sound problem? If it is, go to your device manager and see if there is any problem with your sound driver. If there is a problem, there will be a yellow exclamation mark or red X beside the driver name.

Member Avatar for Ritesh_4

Have you tried updating the sound driver recently? It could be a problem of driver compatibility, else as jingda mentioned, try another earpiece/speakers to see what it gives. In case of updates, try rollback to the previous version

Member Avatar for mjdodd

have you used any other sound system like skype? Sometimes programs hog the sound system and do not return it to windows OS for other sound use. a reboot normally clears this but you may need to select your sound input device in the sound system.
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commented: Welcome back Mjdodd +10
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