Acho que isso pode ajudar - de
I had somewhat similar problem with G10. Turns out I had Windows 7 Ultimate N installed. This version does not necessarily include multimedia support as per the EU court case or something like that. After installing Microsoft update patch that restores the missing multimedia files, the camera was immediately recognized when connecting to USB.
Media Feature Pack for Windows 7 N and Windows 7 KN (KB968211)
Now when ZoomBrowser opens I can connect to camera etc.