I faced same problem during my oa of Deloitte. I also was showing mirrorTo Virtual Camera64. I searched for the cause. Then I went to window registry and searched for camera64 and deleted the registary for it solved the problem but I do not know what was causing it I did not analyzed the structure where the registry was present. now I want to know. if you are doing the same registry delete after this post then please share it with me the structure where it was present.