With previous Windows Mobile devices (running Pocket PC, Windows Mobile 5-6-6.1) you were able to see the content of your device through ‘My computer’ as a storage device.
With Windows Phone 7 (and the Zune client), this is not possible anymore.
But…
Open the registry and locate the following key:
- HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\USB
- Look for the value named PortableDeviceNameSpace ; you should have something like VID_xxxx&PID_xxxx&MI_00\xxxxxxxxxx&0&0000\Device Parameters
- Edit the EnableLegacySupport with the value 1
- Edit the PortableDeviceNameSpaceExcludeFromShell value to 0
- and then ShowInShell to 1
Reconnect your mobile device and you should see again your mobile content.