If you try accessing ‘Devices and Printers’ from Control Panel and the system hangs or does not return any device, this could be caused by a not-so-perfect driver written for a Bluetooth adapter. The problem may cause other seemingly unrelated symptoms such as printers being offline for no reason.

Try the following and see if this will resolve the issue:

Click Start button, type “services” into the search program and files box. This brings up a list in the menu, select Services. This should open a list of local services on your system. Find ‘Bluetooth Service” and make sure it has started, right click and set to ‘automatic’. Select “Bluetooth Support Service” and start, set to automatic. Restart the system.

The above steps apply to a Windows 7 system. Similar procedures are available for other versions of Windows.