Windows 11 introduced a feature that breaks old DirectX 9 games.
The error message itself is deceptively simple:
Fatal Error: VDS100 Please reboot your system and restart the game.
Rebooting does nothing. Reinstalling does nothing. Praying to the physics engine of GTA V does even less. gta iv fatal error vds100
Under the hood, VDS100 is Rockstar’s cryptic way of saying: “I cannot find or access a vital graphics device or adapter.” The “VDS” likely stands for “Video Device System,” a proprietary part of Rockstar’s RenderWare-inspired engine that manages how the game talks to your GPU.
In plain English: The game launches, looks for your graphics card, gets confused, shrugs, and dies.
Laptops and some desktops with Intel/AMD integrated graphics plus a dedicated NVIDIA/AMD GPU frequently trigger VDS100 because GTA IV selects the wrong GPU. Windows 11 introduced a feature that breaks old
For NVIDIA (Optimus):
For AMD (Switchable Graphics):
Sometimes the game tries to use DirectX 11 or 12 fallbacks, which triggers the VDS100. Forcing DirectX 9 via a wrapper is a nuclear option, but highly effective. The error message itself is deceptively simple:
Option A (Registry):
Option B (DXVK – Advanced):
If Fix #1 and #2 fail, download the latest DXVK (DirectX 9 to Vulkan translation layer). Extract d3d9.dll into your GTA IV root folder. This bypasses the native DirectX driver entirely, completely eliminating the VDS100 error on modern GPUs.