Resizing Disks in Virtual Box

Use this guide

Quick Tips:

1. This will only work on Dynamically Allocated Disks. It will NOT work on fixed disks.
2. Put .\ in front of the command vboxmanage.exe

Sample Command:

.\vboxmanage.exe modifymed= ium "C:\Users\David\VirtualBox VMs\Ubuntu2019\VirtSSD.vhd" --resize 3= 0999