You have to do it in the guest ist selves. Just check that virtualbox has the version you like to have.
The iso should be updated automatically.
You just have to use the " Insert Guest Additions CD image option":
You have to do it in the guest ist selves. Just check that virtualbox has the version you like to have.
The iso should be updated automatically.
You just have to use the " Insert Guest Additions CD image option":