For academic or research purposes, there are several papers and studies available that discuss the broader implications of digital piracy, game modding, and the evolving landscape of intellectual property protection in the digital age.
Repack installers often use "cracks" (like the SKIDROW files) that antivirus programs may flag as false positives and delete. You can find instructions for this on the Microsoft Support site. Assassins Creed Revelations-SKIDROW Fitgirl Repack