Applicable for: Mac
You may see this error when you try to install Norton apps on an unsupported operating system.
| Norton App | Supported Operating System |
| 1. Device Security | macOS 10.13 or later |
| 2. Norton AntiTrack | macOS 11 or later |
| 3. Norton VPN | macOS 10.15 or later |
| 4. Norton Utilities Ultimate | macOS 11 or later |
To resolve this issue, check the table above to confirm the supported operating system for your Norton app, upgrade macOS if needed, and then install Norton App.
To know more on how to upgrade your macOS, see this Apple article.
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