Virtualbox configuration error

Windows

Delete the folder %HOMEPATH%\.VirtualBox.

Then try again.

If it does not help, uninstall your current VirtualBox.

Re-install VirtualBox.

Install the VirtualBox recommended version.

Linux

VirtualBox is no longer the default hypervisor on Linux.

QEMU uses kvm and provides better compatibility and performance.

Delete the folder $HOME/.config/VirtualBox.

Then try again.

If it does not help, re-install the VirtualBox package from your distribution.

macOS (Intel x86_64 only)

VirtualBox is no longer the default hypervisor on macOS.

QEMU provides better compatibility and performance.

Also note that VirtualBox is not available for Mac M series.

Delete the folder $HOME/Library/VirtualBox.

Then try again.

If it does not help, re-install VirtualBox.