Virtualbox update guest additions

1. How do I update VirtualBox guest additions?
2. How to update VirtualBox guest additions on Ubuntu?
3. How do I manually install guest additions?

How do I update VirtualBox guest additions?

Windows Guest Additions can be updated by running the installation program again. This replaces the previous Additions drivers with updated versions. Alternatively, you can also open the Windows Device Manager and select Update Driver... for the following devices: Oracle VM VirtualBox Graphics Adapter.

How to update VirtualBox guest additions on Ubuntu?

You do not have to download VirtualBox Guest Additions updates. All you have to do is, when Ubuntu or Debian virtual appliance is running, go to Devices -> Insert Guest Additions CD image as shown in the picture below. This will mount the current version of VBox Guest Additions CD for installation.

How do I manually install guest additions?

But if you're running other RPM-based distributions, you might have to install Guest Additions manually. To do that, begin by starting the virtual machine. Then, click Devices > Insert Guest Additions CD image from the top menu bar. In the pop-up that follows, select Run.