Note:
Trinitycore is divided into 2 branches. These are 3.3.5 (Wrath of the Lich King) & Master (follows the current live version of WoW).
3.3.5 is recommended for everyone.
Master has hardly any game content and should therefore not be taken with the intention of having a good gaming experience.
Within the instructions we will make an explicit distinction between these two branches at some points.
Read each chapter carefully and follow the steps for your planned game version.
Pick one of the following guides
If you still have any problem, check: