This guide will provide you with the most reliable method to fix Ubisoft Game Launcher: Error Code 2 in Assassin’s Creed 2.
Step 1: You will need to go to your browser and open the following link.
http://static3.cdn.ubi.com/orbit/launcher_installer/UplayInstaller.exe
Step 2: Then click on the Download option.
Step 3: Once you have downloaded it, click on the downloaded file at the bottom of your browser and click on Show in folder.
Step 4: Here, right-click on the downloaded file and click on Open.
Step 5: InstallShield Wizard window will open up, click Next and then choose the option “I accept the terms of the license agreement”. After accepting the terms, further, click on Next and then Install.
Now you can launch the game, and you are done resolving this issue.