Important!!! - Always create a backup before performing any partition related operation and also create a snapshot if you are using #VirtualBox or VMware. It's a good practice to regularly create a backup of your data and machines (using a snapshot feature if available). In this video, we will talk about expanding the root partition inside Linux machine which is installed as a Virtual Machine inside VirtualBox. Original partitions were created automatically when the #Linux was installed. So, the first step is to expand the virtual disk using VirtualBox then go inside the Linux machine and use #Gparted, GUI based tool for disk management, to expand the root partition. 1:58 Extend the disk using VirtualBox Manager 8:10 Open gparted on Linux to extend the partition Windows command for VirtualBox to extend the disk size. You would have to navigate to the program files folder where the VirtualBox is installed and then issue the command. First command works for both newer and older version of VirtualBox and if the first command doesn't work for you, try the second one. vboxmanage modifyhd "c:\users\user_folder\VirtualBox VMs\Kali Linux\Kali Linux.vdi" - -resize [new size in MB] vboxmanage modifymedium disk "c:\users\user_folder\VirtualBox VMs\Kali Linux\Kali Linux.vdi" - -resize [new size in MB] Note - You would have to replace the name of Linux folder and the name of vdi file to match with your machine name and file.