Delta Force Black Screen on Launch PC Fix

What is the Delta Force Black Screen on Launch?

Delta Force (the 2024–2026 free-to-play extraction shooter from TiMi Studio Group) launches into a black window on PC and either stays there indefinitely or eventually returns to desktop without an error code. The process DeltaForceClient-Win64-Shipping.exe is visible in Task Manager consuming GPU memory, but the window never paints frames. Audio sometimes plays (menu music or the publisher intro) while the screen stays black, which confirms the renderer — not the executable — is stuck.

The game runs on Unreal Engine 5.4 with DX12 by default. The black screen affects the UE5 viewport initialization path and is almost always tied to one of three things: a regression in NVIDIA 566.x Game Ready Drivers, a damaged AntiCheatExpert (ACE-BE) runtime, or borderless-windowed mode failing to negotiate a swap chain on multi-monitor setups.

When does it occur?

• Immediately after the publisher logo on the first launch following a season patch
• After installing NVIDIA driver 566.03 through 566.45 on RTX 30/40/50-series GPUs
• When the game is set to DX12 with Borderless display mode on a 144 Hz + 60 Hz mixed-refresh setup
• After Steam moves the game install to a different drive without re-running the prerequisites
• On hybrid laptops where the iGPU is selected instead of the discrete RTX/Radeon
• After Windows 11 24H2 reset the game's graphics preference to "Let Windows decide"

Common causes

• NVIDIA 566.x Game Ready Drivers regressed UE5.4 DX12 swap chain creation on multi-display systems
• AntiCheatExpert (ACE-BE) failed to load ACE-BE.sys because Vanguard, EasyAntiCheat, or BattlEye is already resident
• Windows Game Bar / Xbox overlay captured the window before the UE5 renderer attached
• The GameUserSettings.ini retained a borderless fullscreen rect spanning displays with different refresh rates
• HDR is enabled in Windows but the game's tone-mapper does not negotiate the HDR10 metadata
• The Steam runtime is launching the game through the GE-Proton compatibility tool on a Windows install (rare but breaks the renderer)
• Discord, MSI Afterburner, RTSS, or NVIDIA App overlay is hooking dxgi.dll before UE5 finishes init

Step-by-step fixes

1. **Force DX11 with the -dx11 launch flag — In Steam, right-click Delta Force > Properties > General > Launch Options** and paste -dx11 -ResX=1920 -ResY=1080 -windowed. This bypasses the UE5.4 DX12 swap chain bug entirely. After confirming the game boots, you can drop -windowed to return to fullscreen.

1. Roll back NVIDIA to driver 561.09 — Open Device Manager > Display adapters, right-click your GPU, choose Properties > Driver > Roll Back Driver. If the rollback button is greyed out, download 561.09 from NVIDIA's archive (the last known-good driver before the regression), run DDU (Display Driver Uninstaller) in Safe Mode, then install 561.09 with Custom > Clean install. AMD users on Adrenalin 25.5.1 should similarly roll back to 25.3.1.

1. Reset the AntiCheatExpert (ACE-BE) runtime — Navigate to C:\Program Files (x86)\Steam\steamapps\common\Delta Force\ACE-BE\ and delete the entire ACE-BE folder. Then run aceinstall.exe from C:\Program Files (x86)\Steam\steamapps\common\Delta Force\AntiCheatExpert\InstallPackage\ as administrator. This reinstalls the anti-cheat driver and clears stale kernel-mode hooks left by other launchers.

1. **Clear the broken GameUserSettings.ini** — Close the game, go to %LocalAppData%\DeltaForce\Saved\Config\WindowsClient\ and delete both GameUserSettings.ini and Engine.ini. The next launch regenerates them with defaults. This is the single most reliable fix for the "stuck on black after season patch" variant.

1. Disable HDR and Auto HDR — Open Settings > System > Display > HDR, turn off both "Use HDR" and "Auto HDR". UE5.4's HDR10 negotiation in Delta Force has a known regression that causes the renderer to wait indefinitely for a tone-mapper handshake.

1. Force the discrete GPU on hybrid laptops — Open Settings > System > Display > Graphics, click Browse, point to DeltaForceClient-Win64-Shipping.exe, click Options, and choose High performance. On NVIDIA Optimus laptops also open NVIDIA Control Panel > Manage 3D settings > Program Settings, add the executable, and set Preferred graphics processor to "High-performance NVIDIA processor".

1. Disable all overlays before launch — Close Discord (or set User Settings > Game Overlay > Enable in-game overlay to off), close MSI Afterburner / RTSS, disable the NVIDIA App overlay (NVIDIA App > Settings > Features > Overlay Off), and turn off Xbox Game Bar in Settings > Gaming > Game Bar. The Windows + G capture layer is the most common silent culprit.

1. Repair Visual C++ and DirectX runtimes — Run the bundled prerequisites at ...\Delta Force\Engine\Extras\Redist\en-us\UEPrereqSetup_x64.exe. Then install the DirectX End-User Runtime Web Installer (dxwebsetup.exe) from Microsoft, which patches missing d3dcompiler_47.dll and xinput1_3.dll files UE5.4 dynamically loads.

If it still doesn't work

If none of the above resolve the black screen, switch the display mode by editing %LocalAppData%\DeltaForce\Saved\Config\WindowsClient\GameUserSettings.ini directly: set FullscreenMode=2 (windowed) and LastConfirmedFullscreenMode=2, then save the file as read-only (right-click > Properties > Read-only) so the launcher cannot revert it. This is the borderless-windowed fallback most guides skip and consistently resurrects the renderer when the swap chain refuses to initialize at the configured resolution.

Capture a render trace with PIX for Windows or run the game with -d3ddebug -log appended to launch options and inspect %LocalAppData%\DeltaForce\Saved\Logs\DeltaForceClient.log for the last LogD3D12RHI or LogRenderer line — it almost always identifies the failing GPU resource (typically a swap chain or descriptor heap). Report findings on the official Delta Force Discord #bug-reports channel with the log excerpt, GPU model, driver version, and monitor configuration so TiMi can correlate fixes across the player base.