As the integrity failed which is causing me to not be able to fully install the game which states these files are damaged:

setup_darksiders_2.0.0.6-1.bin
setup_darksiders_2.0.0.6-2.bin
setup_darksiders_2.0.0.6-3.bin

How this occurred when I first download it I had no idea what I was doing so I end up with something like this in my download folder:

setup_darksiders_2.0.0.6.exe
setup_darksiders_2.0.0.6-1.bin
setup_darksiders_2.0.0.6-2.bin
setup_darksiders_2.0.0.6-3.bin
setup_darksiders_2.0.0.6 (1).exe
setup_darksiders_2.0.0.6 (2).exe
setup_darksiders_2.0.0.6-3 (1).bin

So I went to the forum which my problem was titled "Darksiders 1 Download Confusion" which I received two possible solutions and reply to both but for some reason my original post along with my replies could not be found not sure if this is a glitch involving my laptop, gog or both. So I decide to try the first solution base off my understanding by doing this:

1. Took files setup_darksiders_2.0.0.6.exe, setup_darksiders_2.0.0.6-1.bin,setup_darksiders_2.0.0.6-2.bin, setup_darksiders_2.0.0.6-3.bin (put them all together in a separate folder called "Seperate Darksiders Folder").
2. Right click setup_darksiders_2.0.0.6.exe and run it as administrator. (note: still have other files that are listed in downloads folder).

Forum issue. This link, post #5, should get you into your thread.

Thanks this solve the forum issue.