I can't resize my Oracle VirtualBox virtual machine vmbox screen

I'm using VM machine by Oracle but the problem is I can't seem to be able to resize the screen.

1 Answer

To resize your Guest Machine, you most likely need to install Virtualbox Extensions in your Guest Machine.

From the screen shot, your Guest machine appears to be Linux and perhaps Ubuntu.

Here is a tutorial to install Guest Extensions for Ubuntu.

Ubuntu Guest Extensions

.

Open terminal window and use the following apt command to install the VirtualBox Extension Pack:

$ sudo apt install virtualbox-ext-pack

.

Restart the Guest machine after installing the extension pack.