Question Camera and Webcam Problem - Error: 0xA00F4243 ?

[paulbasel]

I had an older Logitech webcam that worked for years. Then one day, sometime in the last couple of months I noticed it didn't work in Skype (black screen). I tried to find the problem but couldn't. I thought it was defective and bought a new one. Same problem. I tested the new LogiLink LL1 with the camera app and received this error. I should point out that the microphone worked on the old one as well as the new one.

"Close other apps. It looks as though another app is already using the camera. If you need it, here’s the error code: 0xA00F4243 (0xC00D3704)"

I have an Asus M51AC Desktop PC running Win 10 fully updated. I uninstalled the old Logitech software and driver before installing the new webcam.

Here's what I have tried so far with no success:

​

- Ran Malwarebytes - clean​

- Windows driver up to date, no separate driver for this new camera.​

- Ran DISM tools and SFC, fixed a couple of problems. No change.​

- Switched the USB port to one I know functions properly. No change.​

- Device manager shows the "USB Live camera" functioning properly.​

- Disabled all apps at startup, rebooted, no change.​

- Camera access is on. Turned off all apps using the camera. No change.​

- Uninstalled the MS camera app and reinstalled it after a reboot - no change.​

- Ran system troubleshooter, no problems detected.​

- Ran Hardware and Devices troubleshooter, it returned "saskutil and sasdifsv don't have drivers". These are associated with superantispyware. Not important for this problem.​

- Registry: added Dword: EnableFrameServerMode, hex value 0 in the Windows Media Foundation\Platform. Rebooted, no change.​

- Used Process Explorer to find whether any programs were running that used the Physical Device Object name, in my new webcam the object name is: \Device\000000b2. Process Explorer found none even though I had the camera app open as well as the Skype video setting. Refresh frequently, nothing. I believe this process should at least find the two devices that were open and running.​

​

Any help greatly appreciated before I lose all of my hair.​

 

[Colif]

Click on the Windows key + I to open the «Settings».
Select "Applications and Features."
Locate the Camera and click on it.
Select "Advanced Options" and then "Restart".
Restart the PC.

Then check.

I figured it out after months of trying and sending it back to the manufacturer. I had the camera plugged into my powered USB 3.0 hub which was working fine prior to February. After plugging it directly into one of my desktop ports it works no problem. Unsure why it doesn't work on the hub however.

all quotes from link below

tried Jerico T's suggestion in link below? (create new user)
Microsoft

 

[paulbasel]

I tried that a couple of times No go. I forgot to add in my list of possible fixes.

 

[Colif]

Used Process Explorer to find whether any programs were running that used the Physical Device Object name, in my new webcam the object name is: \Device\000000b2. Process Explorer found none even though I had the camera app open as well as the Skype video setting. Refresh frequently, nothing. I believe this process should at least find the two devices that were open and running.

hmm

did you see this one?

1. Open Registry Editor by pressing Win+R and typing regedit
2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\CapabilityAccessManager\ConsentStore\webcam\
3. If not found, try HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\CapabilityAccessManager\ConsentStore\webcam\
4. Microsoft applications are saved as child keys, non-Microsoft applications are under NonPackaged
5. Click on the application
6. Each entry has two values LastUsedTimeStart and LastUsedTimeStop. Unfortunately, the values are stored in FileTime. It can be converted in most languages, I have not found an online tool yet.
7. To track in real-time, you can use SysMon with a Registry Modification event.

https://superuser.com/questions/1746419/which-application-is-currently-using-my-camera-on-windows-10

 

[paulbasel]

No, I didn't. I'll try this now.

 

[KingLoki]

Internet security/Anti-virus software can block access to the camera as a privacy measure. Not sure what you are running, but maybe it needs to be allowed or an exception added within this security/privacy program ??

You did a good job at trying to troubleshoot so far 🙂

 

[paulbasel]

Running Windows Defender. I'll turn it off and see if makes a difference.

 

[paulbasel]

I see the Microsoft.SkypeApp and under NonPackaged is another entry for Skype for the Desktop, Teamviewer and Zoom. I'll try running SysMon.

 

[paulbasel]

Turning off Windows Defender did not solve the problem. SysMon is just a bit too complicated for my ancient brain. I'm throwing in the towel. I have to buy a new computer before October 2025 when MS shuts down security updates for my beloved 2013 Asus M51AC desktop. Still runs rings around my wife's new Lenovo laptop on Win11. Thanks guys for all the suggestions. It's the first problem in 11 years that I have not been able to solve with my PC or those of my friends' machines that I supported over the years.

 

[KingLoki]

One last sugesstion, have u replicated all the same settings as your wife's lenovo in windows 11. e.g all camera settings, advanced settings, privacy settings, and plug the camera into a rear usb port. Cheers.

 

[Colif]

Turning off Windows Defender did not solve the problem.

turning it off without replacing it with something is difficult. It simply refuses to normally let you unless it sees a replacement already in place.
Logitech webcams are due for new software anyway, they been using the same drivers now for years.

Disabled all apps at startup, rebooted, no change.

just to make sure, this is the same as:

Try a clean boot and see if it changes anything - make sure to read instructions and make sure NOT to disable any microsoft services or windows won't load right - https://support.microsoft.com/en-au/help/929135/how-to-perform-a-clean-boot-in-windows

It doesn’t delete anything, it just stops non Microsoft programs running with start. Easy to reverse.

if clean boot fixes it, it shows its likely a startup program. You should, over a number of startups. restart the programs you stopped to isolate the one that is to blame.