Q. After anniversary update, MTP  is not working.

I tried with different devices as well as on many PCs.

In the device manager, I get this: The drivers for this device are not installed. (Code 28) A service installation section in this INF is invalid.

Answer.

I had same problem. I did the following to solve that and it worked.

(1) Go to C:\Windows\INF

(2) Type “wpdmtp.inf” in search bar provided to the right of the address bar in Windows 10.

(3) Once you found it, just right click on it and select install. It will take a very few seconds.

(4) Connect your device to the pc.

Done.