An error occored during the installation of assembly component
The installation up to that point is reversed. No product is installed.
Downloading the file for a second time does no solve the problem.
tell us more about your systems.. im so bad at guessing.....
I've just solved it: While trying to install Lightroom Windows
installed updates in the background. After rebooting my PC I started the
installation again. I worked.
Retrieving data ...