Harry,Snapshot. Unbelievable that Parallels is one click away from doing this≫≪ "reverting" to a prior Snapshot, in Parllels, without having made a current
Restoring a previous state looses everything since that state. You were expecting something else?
95% of data loss is due to lack of good "hygiene habits" on the part of the user. No automated crutch makes up for lack of good hygiene habits.
"One click away" is typical for an OS which assumes you know what you're doing. You prefer the alternative?