The error message tells you to remove the launch argument. It is not always the problem. The DirectX 12 Not Supported error in AION 2 means the client started a DX12 or D3D12 render path your system could not service \u2014 but the trigger is often something else entirely. An outdated driver, a quarantined anti-cheat file, or a laptop running the game on integrated graphics all produce the exact same text.<\/p>\n
Fix it by removing Remove Still failing? Stop touching launch options. The next most common cause is Windows<\/a> Security flagging NC Guard, AION 2’s anti-cheat. Check Virus & threat protection \u2192 Protection history. If NC Guard files were quarantined, restore them, then add the game’s installation folder to the exclusions list. Players skip this step because the error text points at the GPU. That is a false trail.<\/p>\n-dx12<\/code>codecodecodecodecode or -d3d12<\/code>codecodecodecodecode from the Steam launch options<\/a>, updating the GPU driver<\/a>, and forcing the game onto the dedicated GPU. That sequence resolves the error for most players within twenty minutes.<\/p>\nThe launch argument is a decoy<\/h2>\n
-dx12<\/code>codecodecodecodecode and -d3d12<\/code>codecodecodecodecode from Steam launch options first. The error text names them explicitly, so it is the fastest check. Right-click the game in Steam, open Properties, and clean out the General tab’s Launch Options box entirely. Then launch again.<\/p>\nThe driver sequence most guides miss<\/h2>\n