My friend is using Windows 8.1, and he has a webcam. He says it is working very well even without installing drivers.

Webcam is A4tech - PK-331F.
enter image description here

I asked for this webcam for use.

I plugged in the webcam, and Windows detected it and installed drivers automatically. Then I opened Skype to check the webcam. I got a message from Skype that said, "Your webcam has microphone." When I clicked over it, it directed me to sound settings where it showed that the webcam microphone was working. I went to video settings, but the webcam wasn't listed there.

enter image description here

As you can see in the image, the webcam is not listed. It is listed in Device Manager but isn't listed in Skype.

I am using Windows 7 Professional 64-bit. Any idea why this is happening?

Here is the hardware lds from webcam installed drivers.


I found an question related to webcam. After the reading answer, I read that OP had problem with its PC. I am sharing my PC specifications if that helps.

Dell Optiplex 960
Dell Inc. 0H634K (Motherboard)
Intel core 2 Duo E8500 - 3.1 Ghz
5GB Ram
AMD Radeon HD 5450 1GB
Windows 7 Professional 64-bit

  • 4
    Please include more details in your question. What webcam model is it? Can you specify what you mean by "doesn't work"? Is the picture black? Or maybe it doesn't show up in Skype or Devices? (you can edit the question)
    – gronostaj
    Aug 19 '14 at 20:16
  • 2
    Please don't that sounds like malware
    – Ramhound
    Aug 19 '14 at 22:54
  • 2
    That 'drivereasy' thing. Tools like that usually install together with a lot of useless stuff or even malware. Right-click the webcam in Device Manager, click Properties, Details tab, choose Hardware Ids and tell us what's there. (you can copy from right-click menu or with Ctrl+C)
    – gronostaj
    Aug 20 '14 at 6:50
  • 1
    First remove any drivers installed (including the windows driver). Then reboot your computer with webcam unplugged (please don't skip this step!). Install the drivers from the manufacturer. Then insert the webcam.
    – agtoever
    Aug 24 '14 at 13:49
  • 1
    Windows driver: right click in de device manager on your device (the webcam). On the "Driver" tab click "Uninstall driver". That removes the default Windows driver for this device, that maybe doesn't work in your case or that maybe conflicts with another installed driver for that device.
    – agtoever
    Aug 24 '14 at 15:44
  1. Download the desired driver.
  2. Save it somewhere where you will remember after the download has been completed.
  3. After successfully downloading the driver, do not open the driver file until you make sure the following has completed: Uninstall any original drivers for the webcam from the PC.
  4. After the original webcam driver has been removed, open the downloaded file.
  5. Install the downloaded driver/s.
  6. When it's successfully installed, restart your PC.
  7. After you have restarted your PC, plug the webcam into your computer and it will automatically recognize the new hardware.
  • 1
    I already have done this but didn't work. Also you should add this in your previous answer.
    – Murtaza
    Aug 26 '14 at 12:10

I have come across the same problem before. You should manually try to download the drivers required for the A4tech - PK-331F.

You can get those here: http://www.solvusoft.com/en/update/drivers/webcam/a4tech/pc-cam/pk-331f/model-numbers/

Good luck!

  • Windows is installing old drivers and this software while scanning in outdated drivers but when I install new drivers recommended by user in comment than it doesn't show up in outdated drivers, that means I have installed latest drivers and still webcam isn't working.
    – Murtaza
    Aug 26 '14 at 7:11

Download the latest driver and install for your webcam , see if the problem is persists.

Select PK-331F press Go


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