Thanks, I thought about the same lines, so yesterday I tried to do just that. After a while DrivePool became unresponsive. I tried rebooting, then resetting settings, to no avail. After that, I tried to deactivate license, then uninstall + Reinstall DrivePool. From that moment Explorer started crashing every time I tried to access it. I completely uninstalled DrivePool (and Scanner, just to be safe), but Explorer kept crashing.
I ended up having to reformat boot drive and reinstall windows on that PC.
Now I am wary of touching a drive managed by DrivePool.
I would rather have DrivePool allow a safe "pool destroy" feature.