First, download and run the VirtualBox_Uninstall.tool
sudo kextcache -invalidate /
kextcache command must be run as root.
You should see something like
KernelCache ID: <Some ID>.
But just to make sure:
You shouldn’t see
VirtualBox any more.
Hey, kudos for making it this far! Wanted to let you know that if you liked this, you might also like Easiest Way to Set Up a Shadowsocks Server.