Please share the system model and Operating System installed.
May I know if you are using webcam central or any other application (for example Skype) to access webcam?
Uninstall webcam listed under 'Imaging Devices' in 'Device Manager' by following the steps below':
If issue persists, you may uninstall the USB root hubs and check if it makes any difference. To uninstall USB Root Hubs:
Once done, uninstall and re-install the 'Webcam' application from control panel and see if it works.
To uninstall open 'Programs and Features' by clicking the Start button -- > Control Panel -- > Programs -- > Programs and Features --> Select a program then click Uninstall.
To re-install webcam central, click on the link: http://dell.to/SZiyuN (might work)
Steps to download drivers:-
Please share the findings.
Thanks and regards,
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