Intel App Stopped Working? Reinstall Rosetta 2 on Mac

By Game Osborne · November 10, 2026 · Mac · Rosetta 2, Intel apps, Apple silicon

Check whether an older app needs Rosetta 2, then safely install it again after a macOS update.

What Rosetta 2 does

Rosetta 2 is a translator built into macOS. It lets apps made for older Intel processors run on newer Macs with Apple silicon, such as an M1, M2, M3, M4, or later chip.

You will not find Rosetta in the Applications folder. It works quietly in the background. After a macOS update, an Intel app may fail to open because Rosetta needs to be installed again, or because the app itself is no longer compatible.

The steps below use menu names found on recent versions of macOS. The appearance may differ slightly on your Mac, but the Finder and Terminal paths are the same.

First, confirm that your Mac uses Apple silicon

Rosetta 2 is only for Macs with Apple silicon. An Intel Mac does not use it, so check your processor before changing anything.

1. Click the Apple menu  in the upper-left corner of the screen.
2. Click About This Mac.
3. Look for a line labeled Chip.
4. Continue only if the chip name begins with Apple M or another Apple chip name.

Check whether the problem app needs Rosetta

Finder can tell you what kind of processor an app was built for. “Intel” means the app needs Rosetta on an Apple silicon Mac. “Universal” means the app contains versions for both Intel and Apple silicon.

A Universal app can still depend on an older Intel-only plug-in or extension. However, start by checking the main app.

1. Click the Finder icon, which is the blue smiling face in the Dock.
2. Click Applications in the Finder sidebar.
3. Find the app that stopped working.
4. Control-click the app icon by holding the Control key while clicking it.
5. Click Get Info in the small menu that appears.
6. Read the entry beside Kind in the Info window.
7. Continue with the Rosetta steps if Kind says Intel.

Try the normal Rosetta installation first

The simplest method is to open the Intel app. If Rosetta is missing, macOS should offer to install it automatically. Make sure the Mac is connected to the internet before you begin.

1. Close the app’s Info window.
2. Double-click the Intel app.
3. Click Install if a message says Rosetta must be installed.
4. Enter your Mac login password if macOS requests it.
5. Wait for the installation to finish.
6. Open the app again.

Install Rosetta safely with Terminal

If no installation message appears, you can use Apple’s official Terminal command. Terminal is a macOS utility that accepts typed instructions. It may look technical, but you only need to paste one command.

There is no need to download Rosetta from an unfamiliar website. Rosetta comes directly through macOS. If it is already installed, the command may simply report that no installation is needed.

1. Connect your Mac to the internet.
2. Quit the Intel app.
3. Open Finder.
4. Click Applications in the Finder sidebar.
5. Open the Utilities folder.
6. Double-click Terminal.
7. Paste softwareupdate --install-rosetta into the Terminal window.
8. Press the Return key.
9. Follow the instruction shown in the Terminal window.
10. Close Terminal when the command finishes.
11. Open the Intel app again.

If the app still will not open

Rosetta solves one specific problem: translating 64-bit Intel software for Apple silicon. It cannot repair damaged app files, make unsupported plug-ins compatible, or run old 32-bit Mac apps.

Check the developer’s website for a newer Apple silicon or Universal version of the app. If one exists, use that version instead of relying on Rosetta. This is especially important when macOS warns that support for Intel-based apps will end in a future release.

You can also delete the affected app and download a fresh copy from its developer or the Mac App Store. Keep any license key or account details nearby before removing paid software.

1. Check the app developer’s website for a newer Mac version.
2. Install the Apple silicon or Universal version if one is available.

Bottom line

If Get Info identifies the app as Intel, reinstalling Rosetta with Apple’s Terminal command is a safe next step. If the app still fails, look for a newer Apple silicon version—the Rosetta check has already ruled out one of the biggest suspects.