It is the first thing you need to fix the issue as stated above. For that, you need to run the virtual machine showing the error and go to the Devices > Install Guest ...

If you find yourself with a mismatched VirtualBox and VirtualBox Extension Pack release, such that VirtualBox itself cannot resolve, Jack Wallen shows you how to fix this from the command line.

Jack Wallen shows you how to install the latest major release of the VirtualBox virtual machine manager. VirtualBox 7.0 has finally been released, and this latest iteration brings plenty of new ...

Stephen Glasskeys Virtualization instructions and compatibility If your VirtualBox is running on a box with an Intel CPU, download and install the CPU-Z tool. Ensure that VT-x is listed in the ...