Can we add a research with a BIOS Serial
With the app :"Additional General Information"
Have a nice day
The extension, Additional General Information, does pull the remote machine's BIOS Serial number (applies only to Windows Guests)
We do have an issue registered around the Windows 10 Anniversary Update not responding with the data needed to populate the fields - could this be what you're noticing on your end?
Here's a bit more information on the extension -
Customer support service by UserEcho