If Witcher 3 Wind Hunt is not opening on your Windows 11/10 computer, the issue might be associated with your graphics card driver. Update or reinstall your graphics card driver. Sometimes, problems occur due to administrative issues. Launch Witcher 3 Wild Hunt as an administrator and see if it works. Game mods can also cause conflicts, whereas in some cases, antivirus or firewall blocks the game to launch. Delete your mods and disable your antivirus temporarily to see if the problem disappears.