Disable your antivirus temporarily during installation. Skidrow cracks use heuristic injection methods that modern antivirus (Windows Defender, Avast, Norton) will flag as "Trojan:Win32/Wacatac" or "Packed.Vmpbad". These are false positives for the DRM bypass, but you must add exceptions.
Once you've downloaded the game files, follow these steps to install Assassin's Creed 2 Skidrow: Assassin 39-s Creed 2 Skidrow Installation Guide
This guide focuses on installing the release of Assassin's Creed 2 , a classic method for bypassing the game’s original (and controversial) "always-online" DRM. ⚡ Quick Verdict Disable your antivirus temporarily during installation
A notorious issue with the Skidrow release: After playing for 1-2 hours, the game says "Your save game is corrupted" . This happens because the crack expects a specific encryption seed. Assassin 39-s Creed 2 Skidrow Installation Guide