macOS · System
Control when downloaded updates install
Fine-tune whether macOS installs downloaded updates immediately, overnight, or only after explicit confirmation, minimizing disruption during active work sessions.
How to open Update Installation Scheduling
- Open System Settings
- Select General, then Software Update
- Click the info button next to Automatic Updates
- Adjust download and install toggles individually
What you should know
- Configured within Software Update → Automatic Updates advanced options
- Downloading updates can be separated from installing them
- Security responses can be set to install automatically even if other updates aren't
- A restart is required to finish most macOS installations
Why it matters
Separating the download and installation stages of an update lets users keep a Mac current without risking an unexpected restart in the middle of active work. This is especially valuable for professionals running long processes or presentations, where an automatic restart could be disruptive or costly. Fine-grained control over installation timing helps balance staying secure against maintaining an uninterrupted workflow.
Best practices
- Keep 'Download new updates when available' on even if you delay installation
- Schedule installs for overnight or downtime hours when possible
- Leave automatic installation of security responses on for baseline protection
- Manually check before a big presentation or deadline to avoid a surprise restart
Common problems and fixes
- Mac restarts unexpectedly to finish an update
- Disable automatic installation and install updates manually at a convenient time instead.
- Updates download but never install
- Enable 'Install macOS updates' in the Automatic Updates settings, or install manually from Software Update.
- Unsaved work was lost during an automatic restart
- Enable auto-save in apps where possible, and adjust update timing settings to avoid working hours.
Tips and tricks
- Leave your Mac connected to power and Wi-Fi overnight to allow scheduled installs to complete
- Check Software Update the morning after a scheduled install to confirm it completed
Frequently asked questions
Can updates install without any restart?
Some smaller updates and security responses can install without a restart, but most macOS updates require one.
Is there a way to fully disable automatic installation but keep downloads?
Yes, toggle off 'Install macOS updates' while leaving 'Download new updates when available' on.
Will macOS warn me before restarting for an update?
Yes, it typically provides advance notice and a countdown before an automatic restart.
Related settings
- Automatic UpdatesThis is the set of individual toggles inside Software Update that decide whether macOS checks for updates, downloads them, and installs security responses, system files, and app updates without asking you each time. You can automate the whole pipeline or keep manual approval at any step.
- Software UpdateSoftware Update in System Settings keeps macOS current with the latest security fixes, features, and app compatibility improvements. Regular updates help keep your Mac fast, stable, and protected.
More System guides for macOS
- Update HistoryUpdate History lists every macOS update, security response, and Apple software update that has ever been installed on this Mac, along with the date and version number. It's the fastest way to confirm exactly what's been patched and when.
- Beta UpdatesBeta Updates lets you opt this Mac into pre-release macOS software — either the public beta or, with a developer account, the developer beta — so you can try upcoming features before they're officially released. Beta software is less stable and should only run on a Mac you don't depend on daily.
- Rapid Security ResponsesRapid Security Responses are small, fast-turnaround updates Apple issues between full macOS releases to patch urgent, actively exploited security issues. They install quickly, often without a restart, and are labeled with a letter suffix like 'macOS Sonoma 14.5 (a)'.
- App Store Automatic App UpdatesControl whether apps downloaded from the Mac App Store update automatically in the background as new versions become available.
- Update Now vs. Upgrade LaterWhen both are available, decide whether to install just the latest security or point update for your current macOS version, or perform a full upgrade to the newest major macOS release.
- Managed Updates (Enterprise/School)See when an employer or school's device management policy is deferring, restricting, or controlling macOS update availability on a managed Mac.