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Horizon Forbidden West Update 1037 1580exe Official

Symptom: The game freezes on the "Press any key" screen. Cause: Update 1037 changed the save encryption key. Modded saves from version 1.0.35 are incompatible. Fix: Roll back to a vanilla save or use the Nixxes Save Migration Tool (released alongside 1580exe).

If your game is stuck on an older version (e.g., 1.0.36), follow these steps:

Release Date Speculation: Late Q2 2024 (Post "Burning Shores" PC Integration) Platform: PC (Steam, Epic Games Store) horizon forbidden west update 1037 1580exe

Since the monumental launch of Horizon Forbidden West: Complete Edition on PC in March 2024, developer Nixxes Software (in partnership with Guerrilla) has been relentlessly optimizing the port. Among the internal build numbers circulating in the community, Update 1037 and the executable 1580exe have emerged as a significant turning point for stability.

If you have seen your Steam client download a 2.5GB patch and your HorizonForbiddenWest.exe file properties now read version 1.3.7.1580, you are on the latest critical build. This article dissects everything you need to know about Update 1037 (version 1.3.7.0) and the accompanying 1580exe binary. Symptom: The game freezes on the "Press any key" screen

While Guerilla often releases comprehensive notes on their official site, here is a quick summary of the actionable changes in this build:

Many RTX 3080/4090 users reported crashes despite having 12GB+ of VRAM. Fix: Update 1037 adjusts the memory allocation logic. The 1580exe now correctly distinguishes between Shared GPU memory (system RAM) and Dedicated VRAM. Previously, the game would refuse to allocate textures even when free RAM was available. This patch solves the infamous Error 0x887A0005 (DXGI_ERROR_DEVICE_REMOVED). Fix: Roll back to a vanilla save or

A niche but critical problem: Some users report that after downloading Update 1037, their antivirus (specifically Bitdefender or Malwarebytes) quarantines HorizonForbiddenWest.exe because it sees the new build 1580 as a "new, untrusted application."

Solution: