I installed Win 10 on Aug 10. And I got an update on the 11th. After that my USB 2.0 ports X2 won't work. My mouse was on one and now the system makes constant chimes like it is constantly being plugged in and out. I confirmed this by witnessing it being connected and disconnected every 1/2 sec. in the devices window. I had to switch the mouse to a 3.0 port for it to work, also I plugged my Samsung galaxy 4s phone in and it won't recognize it in the 2.0 ports and states that in a message.
I'm using an MSI laptop GP60 2PE Leopard and would like my 2.0 ports back.
If you need more details I can provide.