Download Lightroom CC 2015 V6 and install as a trial.
If you get the access denied error, please: Click «HERE» to visit this page, If asked, sign in with your Adobe ID or take a minute to create one. You can now use the link above.
Then Download the update Lightroom V6.1 and install.
Download the amtlib.dll file
extract it from the ZIP and put it into: