I got AMPLIFi 150, Win 7 and same problem. In USB Composite Device Properties window, under Device settings it says: This device cannot start (Code 10).
When I try to update USB driver it say: "The best driver software for your device is up to date" but it still doesn't work.
I can't find AMPLIFi in Line 6 Update software (it says: "Select device ti update" but there is nothing I can choose.)
How can I use it for update software or recording when it can't recognize it as new hardware?
Can anyone help me, please?
Thanks