1) Uninstall Wolfteam via the Control Panel
2) Delete the AeriaGames folder from C:/ drive
3) Delete your old Wolfteam Installer
4) Disable your Firewall, Anti-Virus and Windows Defender.
5) Make sure that your DirectX and Graphics Card Drivers ( nVidia Geforce ), ( ATI Radeon ) are up to date.
6) Re-download the Wolfteam Installer from Here
7) Re-install Wolfteam and let it download all the patches, don't interrupt this process otherwise you will end up with corrupt .dll files again.