The game can't be launched on Windows 7 x64 that has no KB3033929 update on board. To install the update you will need to follow these steps: 1. Download it here: https://www.microsoft.com/download/details.aspx?id=46148 2. Run the file you have downloaded Windows6.1-KB3033929-x64.msu 3. Follow the installation master's instructions You should not have any problems with installing the update, but if you do, please do not hesitate to contact our support service at https://support.4game.com/. NB!: if you are operating Windows 7 with no updates at all, than you won't be able to install KB3033929 right away. You will need to install SP 1 first. Install it and reboot your PC. You will be able to update your system with KB3033929 now.