Universal Binary Running Wrong Architecture — Force Native Apple Silicon Execution

Fix Universal Binary applications running under Rosetta 2 Intel translation instead of native Apple Silicon mode, reducing performance on M-series Macs. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.

Here are the key things to understand: Universal Binaries contain both Intel (x86_64) and Apple Silicon (ARM64) code in a single app. macOS automatically selects the correct architecture, but sometimes defaults to Intel via Rosetta. Running the Intel slice on Apple Silicon works but is slower than native ARM64 execution. Plugins or extensions may force an app to run in Intel mode for compatibility. Activity Monitor shows the architecture each process is using. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: Open using Rosetta checkbox enabled in the app's Get Info panel from a previous troubleshooting step. Intel-only plugin or extension forcing the host application into Rosetta compatibility mode. App downloaded as Intel-only version instead of the Universal Binary version. Corrupted Universal Binary where the ARM64 slice is damaged. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Check architecture in Activity Monitor: look for 'Intel' next to the app (should show 'Apple'). Uncheck Rosetta: right-click app in Finder > Get Info > uncheck 'Open using Rosetta'. Download the Universal Binary or Apple Silicon version from the developer's website. Remove incompatible Intel-only plugins that force the app into Rosetta mode. Reinstall the app from scratch if the binary may be corrupted. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

This article is part of our Mac Error Codes collection on Error Codes Wiki. We provide comprehensive, up-to-date information to help you find solutions quickly.