The Bluetooth stack
First of all, even though in Windows 7 the Bluetooth settings dialog always looks the same, there are at least two different Bluetooth stacks available which differ significantly in capabilities.
One of them (Microsoft/Widcomm/Broadcom?) can easily be recognized because it has the
Bluetooth Device Control window that opens when you double click a Bluetooth device in
Devices and Printers. This one is also the one that has the dialog mentioned in the question.
The other one (Toshiba?) features a "Receive file" entry in it's Bluetooth tray icon menu and does not have these
Bluetooth Device Control windows. The question (and answer) does not apply to this kind of Bluetooth stack.
Reset the setting
The UI method
If you feel uncomfortable editing the registry there is a UI method to re-enable that dialog, however it's a bit cumbersome.
- First you need to pair the device in question.
- Then doubleclick it to open the
Bluetooth Device Control window
- Scroll down to the
Authorization Options section and expand it
- Switch to
Always allow this device to connect for all operations and
- Switch back to
Require confirmation for all operations to and from this Bluetooth device and
- You can now unpair the device again
The next time you send a picture from this device, the file receive dialog will appear and give you the chance to choose the destination folder for the received file again.
The Non-UI method
If you do feel comfortable editing the registry, it's much easier:
- Go to
HKCU, there is a very similar subtree there which I found to have no effect whatsoever)
- Find the device in question by it's MAC address or by doubleclicking the
- Set the
AudioFileOptionetc.) value to 0 (or just delete the whole device key to reset all setting to default)