Thanks for your reply,
USB2.0 HD UVC WebCam is what is suggested it be in device manager (with no yellow exclamation mark) and it's inbuilt on my ASUS F550L as purchased with windows 8.1...I tried to uninstall webcam via device manager last night but it was back almost instantly (have read this on other forum with no solution)...I have just installed Asus lifeframe software as I couldn't find any other software installed to run it...comes up with error box suggesting 'A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available.
I am reading Asus have many issues with their webcams usually after win 10 upgrade..although I don't believe mine has been upgraded to 10 (unless my system is lying to me as states win 8.1) and my PC suggests the driver is the most up to date version...
I can't find anything on the ASUS site and they haven't returned my query...