Below is the complete list of verified fixes. Do not download random .exe files from pop-up ads claiming to be a "launch fix." Stick to the official sources linked here.

Open Steam → Library → Right-click Hitman Absolution → Properties → Launch Options.

Paste this string exactly: -skip_launcher -nosplash -force-d3d11 -windowed

Why this works: The -skip_launcher bypasses the broken UI launcher. The -windowed forces the game to start in a borderless window, which avoids the full-screen black screen bug.

Corrupt or missing files cause launch failure.

Steam:
Library → Right-click Hitman: Absolution → Properties → Installed Files → Verify integrity of game files.

GOG Galaxy:
Click the game → Settings → Manage Installation → Verify / Repair.

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