By installing the Definitive Edition patch you are breaking the Rockstar end user license agreement and when contacting their support, they may refuse due to the EULA violation. In accordance with the GNU GPL license(s), as the authors of this guide, we have a right to non-commercial distribution and modification as long as no changes are made to the original source. We are not the authors of all the following modifications, and therefore any error/crash/bugs should be directed to the developers themselves.
Faced with a certain problem, or just want to know as much information as possible before starting the game? Answers to frequently asked questions are published below:
1. Game logos and Steam Overlay at the beginning of the game may not work.
2. The graphics settings in the game should look like this:
3. If you are experiencing problems running the game, try setting compatibility with Windows XP in the properties of the executable file.
4. You can enable anisotropic filtering and vsync for smoother gaming and detailed graphics in your graphics card settings.