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This requires the installation of Oracle VM VirtualBox Extension Pack.This requires the installation of Oracle VM VirtualBox Extension Pack. The procedure here has been tested on VirtualBox 4.3.10Download the following file:* From this location:*Goto the file and right click, choose to open in VirtualBox. You will be prompted to install the extension. After initiating installation you will see an install progress dialog box. KDESudo will prompt you for your password. This prompt opens behind the current window and sometimes cannot be seen. If the install progress indicator is not moving it is probably because you have been prompted to enter the password for sudo, and the dialog is hidden behind the current window.