IMPORTANT ANNOUNCEMENTS AND HOT TOPICS
Gifting of The Witcher 3: Wild Hunt temporarily unavailable (fix in progress)GOG Galaxy - troubleshooting and useful informationThe Witcher 3 predownload - frequently asked questionsNvidia code for The Witcher - common issues and solutions
IF YOUR COMPUTER IS EQUIPPED WITH A DEDICATED (MORE POWERFUL) NVIDIA OR ATI/AMD GRAPHICS DEVICE
You should perform the steps below to use the superior card.
For an NVIDIA card, go to NVIDIA Control Panel -> Manage 3D settings. You should be able to select the NVIDIA card as the preferred device or create a profile for the game to use it.
For an ATI/AMD card, go to Catalyst Control Center -> Power -> Switchable graphics. You should be able to select High Performance for the game - this should make it use the Radeon card.
IF YOUR COMPUTER IS ONLY EQUIPPED WITH THE INTEL HD DEVICE
Try to start the game with a second display attached or follow this tutorial to create a virtual one: