Hi LemP
I have found what I believe to be the reason for the padlocked icon. First let me clear up an error on my part.
The Windows 7 pc is part of my private network. It has several drives, internal and external. With exception of one external drive, all drives have more or less the same attributes as described by you. That is to say, the main folder icon is $Recycle.Bin with a locked subfolder Recycle Bin and the Security options are more or less the same groups.
On the external disc, it is $Recycle.Bin that is locked. Not the subfolder. In addition, $Recycle.Bin is shared. Clearly this should not be the case and is probably a left-over from some previous use of the drive and the reason for the padlock.
The sharing tab on the Properties dialogue box has designated the folder as shared.
I cannot think of any reason for unsharing the folder as any settings are confined to itself and sub folders but not others.
Can you think of any reason why I should not do this, or any precaustions to take before proceeding further?
Iain