If VirtualBox is unable to install the extension as it already exists, we recommend you delete the folder where these extensions are installed and then retry.

Kubuntu is an official, lightweight Ubuntu-based Linux distribution. If you want to try Kubuntu on VirtualBox in Windows 11/10, follow this guide.

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.