Updating audio drivers
If you have a branded computer, go to the computer manufacturer's website.If you have a PCI or external soundcard or interface, go to the website of the soundcard manufacturer.Once you have the necessary information about your sound device, you can normally obtain appropriate updated drivers specific to your hardware from the internet.Manufacturers of motherboard sound devices such as Realtek, Sigmatel and Soundmax do not usually provide any driver support to end users.Then on all versions of Windows, expand "Sound, Video and Game Controllers" by clicking on the sign, right-click over the sound device and click "update driver".After the update (even if more recent drivers were not found), you should right-click over the device again, click Properties and then on the Driver tab to check the "Driver Provider".
If such a device is malfunctioning and the manufacturer does not offer special drivers, examine the USB cable and connections, or look in the device's or the operating system's control panels for issues with the device or with the Universal Serial Bus controllers. Windows users can try updating their drivers via Device Manager in the first instance, before looking for drivers on the internet.
Be sure to uninstall the old drivers of the device (right-click over the device in Device Manager If you cannot locate suitable drivers at the computer or motherboard manufacturer's site you could also try the website of the stated "Driver Provider" or "Manufacturer" of the sound device, but any drivers you find may only be generic drivers not properly matched to your motherboard.
If you are reading this because recordings have always worked fine in the past but are now recording incorrectly, or because an input is missing or Audacity is no longer launching properly, an automatic update via Windows Update may just possibly have caused the problem.
These must be replaced with drivers made by the manufacturer of your hardware, so they are correctly matched to that hardware.
If you have now got updated non-Microsoft drivers, try them and see if your recording problem is cured.
Search for updating audio drivers:
If the recording problem persists, note the name of the Driver Provider in Device Manager.