Productive work with VirtualBox, snapshot

To work productively I do not need i7 CPU and DDR4 RAM.

Here is what I need to know. At the basic image in virtual box I click [Clone]:

Leave the default value:

This is where the chemistry happens. Select linked clone:

Now I select (Linked Clone) and start the machine:

This step I love the most. Every time I mess up the system I just hit [X], select Power Off machine and Restore the current snapshot. Selection needs to be done only once. Next time VirtualBox will know your need :) This is so cool!