I found a fix in another Windows 7 forum.
When selecting Devices and Printers (Device Stage) in the menu the progress bar would take forever and never display anything - just blank.
Finally discovered it was actually a bluetooth issue in services.
THE FIX at least for me..
'Bluetooth Service" and make sure it has started, right click and set to automatic
"Bluetooth Support Service" and start, set to automatic
This fixed my issue, hopefully yours as well..
Originally posted by slappydog