I've been having an incredibly frustrating issue with my Latitude E7440. I believe that ever since I've upgraded to Windows 10, I have had issues with my Webcam and my microphone. From reading around the forums, I'm under the impression that it may be a motherboard/driver issue. However, I have on numerous occasions tried to install/reinstall drivers for both in order to fix the problem.
Microsoft Camera App says it can't find my camera. The error code is 0xA00F4244(0xC00DABE0)
The webcam no longer appears in Device Manager, there is no imagine devices and as far as I can tell it is not anywhere in device manager at all. In other words, it's not being detected. I have attempted to manually try and install a new camera via control panel, but there is no option to install a webcam. I understand there are no separate Dell or other drivers for the webcam of the E7440 and they were originally microsoft drivers?
I have tried to uninstall/reinstall Realtek audio manager/realtek HD audio manager drivers numerous times and the microphone is not being detected. This used to work fine, but now it's just not appearing at all. In other words, it is not being recognised. I've tried all the tricks on the forums, in terms of "showing disabled/disconnected devices". My issue is nothing like that.
The problem is that when I open the sound devices, the internal/built-in microphone for my laptop is not being recognised. This used to work fine, and I suspect it's a motherboard issue. The only thing shown under Recording devices is "Jack Mic" (not plugged in) and "Stereo Mix". I'm able to record voice if I use an external microphone in the 3.5mm jack, but the internal microphone is no longer recognised (does not show up anywhere).
Under device manager "Sound, video and game controllers" only shows "Realtek Audio" and under "Audio inputs and outputs" device manager only shows "Speakers / Headphones (Realtek Audio)". I just don't understand where the microphone has gone. It's very frustrating.
I've attached a dump from Speccy with my system specifications. This is incredibly frustrating. I would be happy to reinstall an earlier version of windows if that is possible. I just really want the webcam/microphone functionality of my laptop back.
Thank you for your help.
Please run diagnostic to check the hardware on the system by following the steps below:
1. Power off the system. Remove all peripherals (except AC adapter) from system
2. Power on system, quickly start tapping the F12 key continuously until you see Preparing one time boot menu in the top right corner of the screen. In the boot menu, stroll down to Diagnostic and then click on it. Report back any error code.
If there isn't any error code:
Please power off system, remove all peripherals such as printer, Scanner, Media Card Reader, Small Media cradles (iPod, PDA, MP3 player, etc.), Digital Cameras and Video Recorders, USB storage devices, and CDs or DVDs from all optical drives. Remove AC adapter, battery and then press Power On button for about 15 seconds to release Static Flea Power. Wait about 15 minutes, replace battery, AC adapter and then power on system. Hopefully camera and microphone are working normally.
If webcam and microphone still doesn't work:
Installing (webcam and microphone)drivers through Windows Update - Type Setting onto [Cortana] search box, click Update And Security, and select Check for Updates. Install any available updates and restart your computer if required. Please don't wait later to install, select Restart Now. Do the process over and over until the latest updates are installed on the system. By the way, the latest update should be the Creator Update which Dell tested your system for the upgrade.
After checking and installing the latest window updates:
Run Guide Me option in your Dell Product Support page. The tool will automatically detect drivers updates for your system. Please follow instructions to run Guide Me option in link below:
Lastly, if the webcam and microphone still isn't fix:
In device manager, expand Imaging devices and Sound, Videos & Game controllers. At the device manager taskbar, click Action, and then select Scan For Hardware Changes. Hopefully webcam / microphone drivers appears. If it doesn't appears, click View and then select Show Hidden Devices.