VirtualBox - Arch Linux Wiki Page
https://wiki.archlinux.org/title/VirtualBox

Install the virtualbox package. You will also need to choose a package to provide host modules:

Check your current kernel

$ uname -r
6.15.8-arch1-2

If your kernel is Arch, choose virtualbox-host-modules-arch.

If your kernel is linux-lts kernel, choose virtualbox-host-modules-lts

If your kernel is other kernel, choose virtualbox-host-dkms

For the standard Arch kernel (linux):

sudo pacman -S virtualbox virtualbox-host-modules-arch

Load the VirtualBox Kernel Modules after install.

After the packages are reinstalled, you need to load the kernel modules. The simplest way to ensure they are all loaded is to reboot your system.

sudo reboot

If needed to Load the VirtualBox kernel modules
virtualbox-host-modules-arch and virtualbox-host-dkms use systemd-modules-load.service to load VirtualBox modules automatically at boot time.

To load the module manually, run in root mode:

sudo modprobe vboxdrv

modprobe vboxdrv is the command to load the module. It's quiet when it works.

Type this command lsmod to check if module is loaded.

lsmod | grep vboxdrv 

Success: If the module is loaded, you will see output like this:

vboxdrv               516096  3 vboxnetflt,vboxnetadp