There is a specific problem that many Rome 2 Players face during Launch process: The Game is not Starting or Hang at logo!
In order to Fix it you dont have to uninstall or erase anything from rome 2 game folder through steam but you must delete the application data of the user from the temporary files in windows user profile!
Please follow these steps exactly as I present in order to maintain your save-game Files!
Lets start going to My Computer,you will enter the hard drive that you have the windows!! Usually C and can be discerned from the small logo on the windows hard disk.
Continue entering the users folder!
You have to enter the folder that you started your computer! if you dont know it switch users or restart your computer and watch if before loading windows!
In my case i enter Galilaios Folder and here the place where users usually stuck:
We need to find the folder appdata!! which is hidden and to display hidden folders go a little left over to (organize) and open the (Folder and search options)And it will open a tab in front of us!
Go to submenu tab (view) and drag the slider until you find the (hidden files and folders) and tick displaying (show hidden files and folders).
Press OK and now in the folder of the user appeared a overshadowed folder named APPDATA!
Enter APPDATA and the Roaming,now we need to find the folder (The Creative Assembly)and then head to rome 2 Folder!
Okay now you have to erase everything here except saves Folder! You are Ready!