A service installation section in this inf is invalid mtp/ MTP not working on windows / mobile unable to connect as MTP / camera mode connected but MTP not /

Problem :- Mobile unable to connect with computer after windows 8.1 update. its showing charging but cant not use storage while camera can connect through USB cable.

Error msg in Device Manager :- yellow mark on other device..

solution :- 

1. Download file from below menton link .

         ( https://drive.google.com/drive/folders/0B4rOXndG9t-1QTN4WWtOSm5Mam8 )

2. Right click on downloaded file and click on install.

if still problem , feel free to write in comment.