Gta Iv Fatal Error Vds100 -

This is the legendary fix that solves 90% of GTA IV launch errors, including VDS100. You will force the game to use specific rendering settings via a text file.

-norestrictions
-nomemrestrict
-availablevidmem 4096
-refreshrate 60
-frameLimit 1
-novsync
-fullscreen
-percentvidmem 100

If you still get VDS100, try adding this line to the commandline.txt file:
-adapter 0 (This forces the game to use your primary GPU).

Even if you have DirectX 12, GTA IV specifically needs DirectX 9.0c files. gta iv fatal error vds100

Modern Windows tries to "optimize" old games, which often backfires. Forcing legacy mode resolves VDS100 for many users.

Rockstar released the "Complete Edition" in 2020, which removed GFWL but did not fix the core DirectX 9 driver logic. The game still queries VRAM in 32-bit integers. If your GPU has 8GB, 12GB, or 24GB of VRAM, the number overflows in the game’s code, resulting in a negative value. The VDS100 error is the game’s confused response to "negative video memory." This is the legendary fix that solves 90%

Sometimes the error is due to corrupted runtime libraries.

Additionally, open Regedit (type regedit in Start Menu), navigate to HKEY_CURRENT_USER\Software\Rockstar Games\GTA IV and delete the Settings folder. The game will recreate it with default values. If you still get VDS100, try adding this

"Fatal Error VDS100" is a crash/launch error players encounter with Grand Theft Auto IV (GTA IV). It typically appears at startup or during loading and prevents the game from running. The error is related to the game's handling of files, DRM, or compatibility with modern systems.

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.

For NVIDIA (Optimus):

For AMD (Switchable Graphics):