I have had this problem a few times now and wondered if anyone else has experienced it or can shed light on this.
Firstly - not on my own computer but using a network drive at work.
(has happended on My Documents and a shared resource folder)
From Explorer I select a single file to delete and it works, select a file to move and it works fine. Then on another occasion I select the file to delete and it deletes the whole Folder structure above and below it!
It comes up with the dialog e.g. 'Deleting 930 files' and before I can press cancel most have gone! It does not put any of the files or folders in the recycle bin. One time it even deleted the My Documents folder!
This has happened on about 5 occasions - at two different locations (schools) and I have had varying degrees of success with recovery from the backups.
(I am not a novice user, I know what I am doing and I definitely did not pick a folder to delete.)
Just happened to me today