Works with Orange SIM on Windows 7 32bit

a bit complicated to recognize the key 3G (this is the method that worked for me)
Connect the E220 Windows 7 will only Recognize a new USB Mass Storage Device and a CD drive (qui btw you can not access).
Open the Device Manager
You will see the Universal Serial Bus controllers and under Section That USB Mass Storage Device
Find the One That is related to the E220 (I Kept open the device manager, disconnected the E220 and saw the Mass Storage disappear. I connected it again and saw it so I Knew Reappear which one to play with)
Right click on the Mass Storage Device and select Update Driver Software
Select Browse my Computer
Select the Let me pick section at the bottom
Untick the Show option compatible devices
Select (Generic USB Host Controller) in the Manufacturer Tab (near the top of the list)
Select USB Composite Device in the Model Tab (on the right side)
Click on NEXT to finish installing
Windows 7 will add Reviews another USB Mass Storage Device
Disconnect and reconnect your E220 to E220 resets the software
Then it will pick up the E220 as a modem!