VirtualBox and Windows 8.1: This 64-bit application couldn’t load because your PC doesn’t have a 64-bit processor

I just moved a Windows 8.1 installation in Virtual Box from one computer to another. When booting up, Windows told me: This 64-bit application couldn't load because your PC doesn't have a 64-bit processor The host computer is an Intel Xeon CPU which definitely is a 64 bit CPU (the previous computer was an older … Continue reading VirtualBox and Windows 8.1: This 64-bit application couldn’t load because your PC doesn’t have a 64-bit processor