GrayGhost2 said:
It appears that sevenforum is more inclined to VMware Player, but I had hoped VirtualBox with its included "snapshot" feature would be a quick fix
The snapshot feature is completely unnecessary. It is really easy to restore a virtual machine to go back in time regardless of virtual machine program. Right click the folder the virtual machine is stored in, and use the previous versions feature. You could also go to properties-previous versions. Choose a day back and hit restore. Presto! VM back to the way it was.

In order for previous versions to work, system protection needs to be turned on for the drive, and I recommend dedicating 10% of space to it.

And yes, always use safe mode for system restore. It guarantees no protection software can mess with it.