Stop macOS Sonoma Upgrade Notifications on Your Mac

If your Mac keeps prompting you to upgrade to macOS Sonoma, you can usually quiet the reminders by changing update settings and removing any downloaded installer. These steps help if you want to stay on your current macOS version; they do not prevent Apple from offering updates again, and they are not a substitute for installing security updates you need.

What You’ll Need

• Access to the Mac’s administrator account, especially if you need to change a setting or delete an installer.
• A few minutes to check Software Update, notification settings and the Applications folder.
• If the Mac is managed by an employer or school, contact its IT administrator before changing update settings.

Step-by-Step

1. Check whether the notice is from macOS. Open Apple menu > System Settings (called System Preferences on older macOS versions) > General > Software Update. A genuine upgrade offer appears there. If the message is a webpage, pop-up in a browser, or email, close it without downloading anything and check the address or app that displayed it.
2. Turn off automatic macOS upgrades where the option is available. On macOS Ventura and later, open System Settings > General > Software Update and click the information button next to Automatic Updates. Turn off Install macOS updates or any setting that automatically downloads and installs major macOS upgrades. Labels can vary between macOS releases. If you still want routine security and system updates, leave those options enabled where offered; disabling all updates can leave your Mac less protected. On older macOS, look for the automatic-update controls in System Preferences > Software Update.
3. Disable upgrade-related notifications. Open System Settings > Notifications. Look for Software Update or a similarly named system update entry in the application list. If it is listed, select it and turn off Allow Notifications, or adjust its alert style so it does not interrupt you. Not every macOS version exposes a separate Software Update notification control. If there is no relevant entry, skip this step rather than changing unrelated notifications.
4. Remove a downloaded Sonoma installer, if present. Open Finder, choose Applications in the sidebar, and look for an app named Install macOS Sonoma or similar. If you have decided not to install it, drag that installer to the Trash and empty the Trash if you want to reclaim its storage. Do not delete an installer you intend to use, and do not remove files from System or Library folders to suppress an alert.
5. Restart and check the result. Save your work, restart the Mac, and revisit General > Software Update to confirm the automatic-upgrade setting remains off. A notification already queued may appear once more; dismiss it and observe whether it returns. Keep checking for security updates through Software Update rather than assuming all updates are disabled.
6. If your Mac is managed, ask the administrator. A work or school configuration profile can control updates and may restore settings after you change them. Open System Settings > General > Device Management, if that item is present, to see whether the Mac has management profiles. Do not remove a profile supplied by an organization without permission.

Common Mistakes

• Turning off every update: Automatic major upgrades and smaller system or security updates are separate controls on some versions. Disable only the upgrade behavior you want to stop, and review the remaining options carefully.
• Expecting the notification switch to remove the offer: Notification settings may hide banners but do not necessarily remove the upgrade from Software Update or prevent an installer from downloading.
• Deleting the wrong item: Remove only the clearly named macOS installer in Applications. Avoid deleting unfamiliar system files or changing hidden settings and Terminal commands found in unverified instructions.
• Assuming the preference is permanent: Apple can change update screens between releases, and management policies can override personal settings. Recheck after a macOS update or if reminders return.
• Ignoring available security fixes: Staying on an older macOS version can eventually mean missing fixes. Check Apple’s Software Update screen periodically and consider whether your current version still receives updates.

Tips

• Before changing update preferences, note which options are on so you can restore them later.
• If you are postponing an upgrade because of an app or device, check with its developer or manufacturer for compatibility information before deciding when to upgrade.
• Keep a current backup before any major macOS upgrade. A backup also gives you a safer recovery option if an update or later troubleshooting goes wrong.
• Use Software Update itself to check for updates. Do not follow links in unsolicited upgrade pop-ups or install a macOS installer from an unfamiliar website.

Troubleshooting

The notification returns after I turn it off. Check whether you disabled notifications for the correct entry and whether the alert is actually from Software Update. If the offer appears only in System Settings, the notification control may not hide it. Recheck automatic-update options and remove the downloaded installer if you do not need it.

I cannot find Software Update in Notifications. Some macOS releases do not provide an individual notification switch for system updates. Use the Automatic Updates controls in General > Software Update instead, and dismiss the prompt when it appears. Avoid disabling notifications for unrelated apps.

The automatic-upgrade option is missing or greyed out. The available controls depend on your macOS version and account permissions. Install available updates for your current system if appropriate, sign in with an administrator account, and check for Device Management. On an organization-managed Mac, ask IT to explain its update policy.

The installer is not in Applications. It may not have downloaded, may have been removed already, or may be stored under another installer name. Do not search for and delete random files. If the reminder continues, focus on the Software Update and notification settings.

A web page keeps showing an upgrade alert. It is not controlled by macOS Software Update preferences. Close the page, avoid its download buttons, and review the browser’s notification permissions if it sends repeated alerts. Remove permission for a site you do not recognize; browser settings differ by browser.

Frequently Asked Questions

Can I stop Sonoma from downloading automatically?
On supported macOS versions, open General > Software Update > Automatic Updates and turn off the option to download or install macOS upgrades. Exact labels vary.

Can I hide the upgrade reminder without turning off security updates?
Often you can leave security or system updates enabled while disabling automatic major upgrades. Notification controls vary, so check which options your Mac actually provides.

Will deleting the installer stop every reminder?
It removes the downloaded installer and may free storage, but it does not necessarily remove the upgrade offer from Software Update or prevent a later download.

Is it safe to keep using my current macOS?
That depends on whether your Mac and apps remain supported and whether your macOS version still receives security updates. Check Software Update periodically and plan an upgrade when continued support or compatibility requires it.

Why do the settings change back?
A macOS update, configuration profile, or organization policy may change or enforce update behavior. Check Device Management and contact the administrator if the Mac belongs to work or school.

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