@ksiemb Rollback driver option is not enable,it says if update driver fails ,it roll back to previous version. I have tried installing updated driver sp34746 , but it seems driver not updating. I tried many solutions, but all in vain. Don't know why suddenly this webcam stopped working.
Have a Windows restore date you can use, to when it was working ? If so, backup any personal files to a flash or rewritable media before restoring.