If you want to troubleshoot a specific game error, let me know: What is the or code? What game are you trying to launch? What is your graphics card model ?
Therefore, when you see websites or forum posts offering a "DirectX 12 Offline Installer," they are often misleading. They might be providing outdated DirectX 9-11 runtime installers, or worse, potentially harmful software. A legitimate "offline installer" for DirectX 12 does not exist from Microsoft because it's already part of your operating system. directx 12 windows 10 64 bit offline installer link
Unlike fake "driver update" websites that bundle malware, Microsoft provides an official offline installer. However, finding it is tricky because Microsoft hides the full redistributable package. If you want to troubleshoot a specific game
Nvidia Maxwell (GTX 900 series) or newer; AMD GCN 1.0 (HD 7000 series) or newer; Intel HD Graphics 4400 or newer. Graphics Drivers: WDM 2.0 or higher driver model support. Troubleshooting DirectX 12 Issues Therefore, when you see websites or forum posts