PC wrongly identified as VM

Hi,I have sent a copy of my software to a friend who is definitelly not running it in a VM. But when he tried to activate his copy turboactivate.exe identified his PC as a VM.What might be the reason? Any way to fix this?

I am using the 64 bit version for Windows, my software was compiled with Visual Studio 2017.I am using Windows 10 and it works fine for me, my friend is using Windows 8.