1037 1580exe — Horizon Forbidden West Update

The file likely falls into one of the following categories:

A. Trojan or Malware Cybercriminals frequently use popular game titles to disguise malicious executables.

B. Pirated "Crack" or Repack The specific string 1580 is a common identifier used by the scene group "Codex" (often stylized as CODEX) or repackers who use numerical identifiers for scene releases.

C. "Bait and Switch" Scam The file may be a placebo—naming itself as an update to entice downloads on pay-per-download sites, without actually containing any game data.

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).

Treat these update numbers as in-game datapoints:

”Log 1037 – GAIA’s tertiary kernel reports a drift in the Zero Dawn biosphere. Aloy must recalibrate the Spire’s harmonics before the signal of ‘1580’ activates a dormant Horus.”

You could even create a custom New Game+ run:

The 1580exe has a new DRM handshake. If you use RGB peripheral software (Corsair iCUE, Razer Synapse), you may experience a delay on launch.

Sometimes numbers like these come from:

Check the actual file version by right-clicking the .exe → Properties → Details → File version.

Before diving into the fixes, let's clarify the nomenclature. The community often mislabels updates by the executable hash. The official version is v1.3.7.0. However, the compiled executable (HorizonForbiddenWest.exe) has a build ID of 1580 (often displayed in Windows file properties as Product Version: 1.3.7.1580).

Thus, "Update 1037" refers to the patch number (likely a hotfix for v1.3.7), while "1580exe" is the specific binary file distributed by this patch.