You may get VirtualBox failed to open/create the internal network when you start a VM on Windows. The suggestions in this post are sure to help you.

Fix The VirtualBox kernel modules do not match this version of VirtualBox, VERR_VM_DRIVER_VERSION_MISMATCH error on Windows 11/10.

Unable to reach your VirtualBox VMs after a change in your IP landscape? Here's a quick fix.

It’s taken more than a week for various problem reports to take on a coherent theme, but it now appears as if an “elevation of privilege” patch for Windows, MS 15-038/KB 3045999, causes ...