This pc(C:).lnk on wm10 th2

hi, my phone is running on windows 10 mobile build 10586.456 th2. old shortcut from astoria bridge its not working ..how we can go to the main(C:)

http://forum.xda-developers.com/windows-10/windows-10-mobile/tutorial-how-to-copy-files-android-to-t3178808