I have a clean installation of Windows 10 on a Sony laptop. I have installed Norton Internet Security. Everything seems in order except that when I go to Security>Run Scans> and then choose "Diagnostic Report", and then "run", absolutely nothing happens. No report, no hard drive activity, nothing. I have run the repair tool, I have un-installed and re-installed several times to no avail. It works fine on my other two Windows 10 machines. Any idea as to what is wrong?