For virtual emulation in most cases i use VMWare Workstation 15.5 dated back to 2020, which works awesomely fine. Recently i run into VirtualBox on my primary job and have to run Linux Debian on Windows 7 Enterprise. As per official Oracle documentation all [6.x VirtualBox releases] are compatible with Windows 7. Unfortunately it is not so true. Most of people can’t ran following versions: VirtualBox 7.0 and above VirtualBox 6.