Why Is My Mac Not Updating?

Eric DawsonByEric Dawson Computers & Software

If you’re asking, “why is my Mac not updating?” the usual causes are compatibility, insufficient free storage, an unstable internet connection, or an update that has stalled while downloading, preparing, or installing. Start at Apple menu > System Settings > General > Software Update, which shows only macOS releases compatible with your specific Mac model.

Back up first, keep a MacBook connected to power with its lid open, and allow the restarts to finish. If the updater is stuck checking for updates, wait about 30 minutes, disable any VPN or iCloud Private Relay, check Apple’s System Status page, and test your connection. For storage, third-party guidance suggests freeing at least 20GB, with more room preferred for major upgrades.

Why Is My Mac Not Updating?

Several issues can stop a Mac update: the macOS release may not support your model, free storage may be too low, the connection or Apple’s update service may be unavailable, or the installer may have stalled. Compatibility comes first because Software Update only finds and offers Apple software that works with the specific Mac model.

Software Update may say your Mac is up to date when no newer compatible release is available for it.

Major upgrades move between numbered macOS versions, while smaller updates install a later version within the macOS already on the Mac. Missing administrator permission can also block the process, since installation asks for the password used to log in to the Mac.

Storage can prevent an update from downloading, preparing, or installing properly. A Mac update not enough space message means you need to clear room before trying again, and you can review available capacity in System Settings > General > Storage.

More room may be needed because the temporary working space can be much larger than the download itself. Removing unneeded large files, old messages, images and videos from Messages, or other items shown in storage categories can help.

Network trouble is another common reason a MacBook won’t download an update or a Mac stays stuck checking for updates. Slow Wi-Fi, dropped connections, competing devices, VPNs, iCloud Private Relay, and third-party firewall software can interfere with the download or update check. Ethernet can be more reliable than Wi-Fi for a large download, while restarting the router or moving closer to it may improve a wireless connection. Apple service issues can also delay downloads, so check Apple’s System Status page when the updater appears stalled.

Finally, a macOS update stuck preparing or paused on a progress bar is not always broken. Installation can involve blank screens and a progress bar whose time estimate is not precise. Back up before installing new software, then allow the process to finish if progress continues. Repeated failures call for a normal restart, Safe Mode, Disk Utility First Aid, or reinstalling macOS from Recovery.

Check Compatibility and Software Update

Compatibility determines which macOS releases Software Update can offer for a particular Mac model. If the pane says the Mac is up to date, it is not offering another compatible update, and the major release you expected may not support that model.

Confirm Model Support First

Compare that model with Apple’s compatibility information for the macOS release you want instead of assuming a missing upgrade means Software Update has failed. Apple provides separate compatibility references for macOS 27 Golden Gate, macOS Tahoe 26, macOS Sequoia 15, macOS Sonoma 14, macOS Ventura 13, macOS Monterey 12, macOS Big Sur 11, and macOS Catalina 10.15. Older Macs that do not have Software Update use Apple’s other download and installation methods.

  1. Open Software Update.
  2. Choose the available Update, Upgrade, or Restart Now button when macOS offers one.
  3. Select Check for Updates if the expected release does not appear.
  4. Retry by pressing Command-R or by closing and reopening the Software Update pane.

Authentication is required before installation begins, so enter the administrator password used to log in to the Mac. Missing administrator permissions can stop the update process before it starts. After entering the password, allow Software Update to download and install the release it has offered. Automatic-update settings can also control whether the Mac downloads or installs updates automatically, so check those settings if you expected the process to happen without prompting.

Retry a MacBook That Won’t Download an Update

Checking again can refresh the list of software available for the Mac. Close Software Update, reopen it, and give the check time to finish before trying further steps. Alternatively, press Command-R while the Software Update pane is open.

Should the Mac remain stuck checking for updates with only a spinning wheel, a MacBook that will not download an update can also be affected by the connection or Apple’s update service, which are the next areas to check.

Major upgrades can be downloaded through the App Store by searching for the macOS name and selecting Get. Search for Sonoma, Ventura, or Monterey there when one of those installers is needed. Use Apple’s downloads page for current macOS downloads as another route to an installer. Before starting any installation, back up the Mac so personal files are protected if later repair steps become necessary.

Fix a Mac Stuck Checking for Updates

If it remains stuck, rule out connection problems, VPNs, privacy tools, and Apple service interruptions that can stop a MacBook from downloading an update. A spinning wheel with no other change can mean the check is slow, but it can also point to a network or update-service problem.

Check Your Connection and Network Tools

First, turn off any VPN and iCloud Private Relay that are enabled, then quit third-party firewall software such as Little Snitch or Lulu. Next, test the internet connection by streaming a video to see if the network is slow or repeatedly disconnecting.

Testing this way can reveal a local connection issue that prevents macOS from reaching Apple’s update servers. Ethernet is preferable to Wi-Fi for a large update download because it is faster and can have fewer download problems, while moving closer to the router may improve a weak wireless signal.

Apple’s System Status page at https://www.apple.com/support/systemstatus/ can show whether macOS Software Update is having a service problem. Service outages have previously prevented users from downloading macOS updates, so an error does not always mean something is wrong with the Mac. For a home network that is under strain, restart the router, confirm that any Ethernet cable is fully connected, and disconnect idle devices from Wi-Fi to free bandwidth.

Try Another Download Route

Alternatively, Apple’s downloads page at https://support.apple.com/downloads provides current macOS downloads. Advanced users facing a persistent checking screen can run sudo launchctl kickstart -k system/com.apple.softwareupdated in Terminal to restart the software update service. Another cache-clearing approach is to run open $TMPDIR../C/com.apple.appstore/, move the contents of the com.apple.appstore folder to Trash, and empty Trash; on some macOS versions, use Go to Folder with ~/Library/Caches/com.apple.appstore/.

If the download finally starts but remains unusually slow, keep the Mac connected to reliable power and avoid putting it to sleep. Before moving to more involved repair steps, make sure the connection remains stable throughout the download. Persistent failures may require further repair steps.

Free Space for a macOS Update Stuck Preparing

Storage can stop a macOS update stuck preparing because macOS needs room beyond the installer download to stage and install files. Insufficient space can trigger a “not enough storage” message or leave preparation unable to proceed. Before retrying, open System Settings > General > Storage and review available capacity plus the categories using it.

Apple says to free storage when the Mac reports that there is not enough room for installation. Rather than judge by download size alone, leave enough working space for installation files and temporary processing. A larger buffer can help the process run more smoothly during installation.

How Much Space to Free

Third-party guidance varies, so treat figures as planning estimates rather than a universal Apple requirement. Macworld recommends at least 20GB free before recent macOS installations and advises allowing more in practice. Another guide suggests at least 25GB, while a separate cautious recommendation for a major upgrade is 35-50 GB.

Those amounts are not Apple requirements, and actual working-space needs can exceed the download size. Historical Big Sur context shows why: the installer was about 12GB, while installation was reported to require approximately 48.5GB of free space. For current releases, keep a larger margin where possible before retrying preparation.

Review each storage category, then use the Info button beside an item to identify material that can be removed. Large files, old emails, text messages, Time Machine backup files, caches, and images or videos in Messages are places to consider. Moving suitable files to iCloud or an external drive can also create room.

Avoid deleting anything you need unless it is backed up elsewhere. After freeing space, return to Software Update and retry the installation from there. If the installer was previously reported damaged or unable to be verified, Apple advises deleting it and downloading it again from Apple.

Should preparation fail again after adequate space is available, move beyond storage cleanup rather than repeatedly interrupting the Mac. First, keep the MacBook awake while installation continues. Progress can include restarts, blank screens, and estimates that do not precisely reflect remaining time.

Repeated force restarts during active updating can cause corruption, so avoid them while progress is still moving. Instead, if it repeatedly fails after the space issue is addressed, use the earlier troubleshooting measures.

Since 2022, my refurbished Lenovo ThinkPad T14 Gen 2 has sat in north Columbus, Ohio, quietly demonstrating that old downloads and forgotten files do not become important merely by surviving my neglect. For free space when a macOS update is stuck preparing, I would clear room before deleting and downloading the installer again; repeating preparation while the drive is cramped is a poor use of stubbornness.

Wait Safely During Installation

Most macOS installations include blank screens and progress bars that can appear to pause. Apple says the Mac may restart several times while the update completes. A changing display alone does not mean the installation has failed.

Progress bars are estimates rather than precise countdowns, so the time remaining can change or appear unchanged for a while. A “Few minutes remaining” message can stay on screen for 20 to 30 minutes without signaling a failure. Major yearly upgrades commonly take 45 to 90 minutes from download through installation, while smaller point updates usually take 15 to 30 minutes. Downloading, preparing, and restarting each have separate stages, which helps explain why an update can seem slow even when it is still working.

What You See What To Do First When To Escalate
Mac restarts or shows a blank screen Keep power connected and allow the restart to finish. Use repair options if the update repeatedly fails to complete.
Progress bar moves slowly Wait and avoid force-restarting while progress continues. Consider it potentially stalled if there is zero progress for more than 60 to 90 minutes.
“Preparing Update” appears frozen Allow time for macOS to stage the installation. Move to Safe Mode or Recovery after judging the update genuinely stalled.
“Few minutes remaining” does not change Wait 20 to 30 minutes before treating the estimate as a problem. Check for a longer period of no visible progress before interrupting.

Installation logs can offer a clearer view of activity than the progress bar. Press Command-L during installation to open the log window and look for continuing entries, rather than relying only on the estimated time. Disk activity or changing log entries suggest that macOS is still working. Conversely, a black screen with a frozen progress bar for more than 60 to 90 minutes can indicate a genuine stall according to one general guide.

If the display has not changed, avoid repeatedly forcing the Mac to restart. One more conservative guide advises that a force restart is unsafe unless 8 to 24 hours have passed without disk activity. Normal restarting from Apple menu > Restart is preferable when the Mac remains responsive.

Before taking stronger action, make sure the apparent pause is not simply part of the normal restart sequence. After a truly stalled or repeatedly failed installation, Safe Mode, Disk Utility First Aid, and macOS Recovery provide the next repair paths. Recovery can reinstall macOS without erasing personal files, while Disk Utility can check the startup disk for errors.

Repair Repeated Update Failures in Safe Mode and Recovery

Recurring update errors are best handled by starting in Safe Mode, checking the startup disk, and then using macOS Recovery if the failure continues. Safe Mode limits background processes, which can help isolate third-party software interference before another installation attempt.

After shutting down an Apple silicon Mac, hold the power button until “Loading startup options” appears, select the startup disk, hold Shift, and select Continue in Safe Mode. On an Intel Mac, shut down, start it while holding Shift, release Shift at the login window, and sign in.

Begin with Apple menu > Restart when the Mac can respond normally; use a force shutdown only when it is frozen and cannot restart normally. Once macOS is running, retry installation from Software Update. Try Safe Mode when Software Update or an App Store installation fails, because it loads only essential background processes and can help diagnose a third-party conflict.

Before trying again, run Disk Utility’s First Aid on the startup disk. Select Macintosh HD in Applications > Utilities > Disk Utility, then click First Aid to check the volume for errors. Use the startup volume named Macintosh HD, rather than a file or folder, as the item to inspect.

Repair is unnecessary if Disk Utility was just used to erase the startup disk. If an installer says it is damaged or cannot be verified, repair the disk, delete that installer, and download a fresh copy from Apple. Apple directs this repair route for installation errors.

Enter macOS Recovery if repeated attempts still fail or another application appears to interfere with installation. For Apple silicon, shut down, hold the power button until startup options appear, select Options, then Continue. Choose Command-R at startup on an Intel Mac, then choose Reinstall macOS.

Reinstalling macOS from Recovery can reinstall the system without erasing personal files. If the installation previously succeeded and needs installation again, Recovery is also Apple’s route for reinstalling macOS. Recovery also provides Disk Utility if you need to repeat the disk repair from that environment.

Persistent failures may warrant a bootable installer, which requires a USB drive of 16 GB or more. Consider this only after earlier measures. A bootable installer is another escalation option when Software Update and Recovery have not resolved the problem.

Apple silicon Macs can also be restored through Apple Configurator using a second Mac in DFU mode as a last resort. Erasing the Mac and resetting it to factory settings comes only after preceding remedies fail, and a backup should be made before installing new software.

Frequently Asked Questions

Why Does Software Update Say My Mac Is up to Date When I Want a Newer macOS Version?

Software Update offers only software that is compatible with your specific Mac model. Check again by clicking “Check for Updates,” pressing Command-R, or closing and reopening Software Update. You can also choose Apple menu > About This Mac to identify your model and installed macOS version, then compare it with Apple’s compatibility information for the release you want.

How Long Should I Wait When My Mac Is Stuck Checking for Updates?

Wait about 30 minutes when Software Update shows only a spinning wheel on “Checking for updates.” During that time, disable any VPN, iCloud Private Relay, and third-party firewall software that may affect the connection. If the check still does not finish, check Apple’s System Status page and test your network connection.

How Much Free Space Does a Mac Need for a macOS Update?

Apple does not give one universal free-space requirement for every macOS update. Third-party guidance ranges from at least 20GB to at least 25GB free, with more space preferable for a major upgrade. Check available capacity in System Settings > General > Storage, then review storage categories and remove files as needed.

What Should I Do if macOS Is Stuck Preparing an Update?

First, check that the Mac has sufficient free storage and allow time for the update to stage. A “Few minutes remaining” estimate can remain unchanged for 20 to 30 minutes without meaning the installation has failed. Avoid repeated force restarts while progress is active, because interrupting an update can cause corruption; for repeated failures, try Safe Mode or macOS Recovery.

Can I Restart My Mac While a macOS Update Is Installing?

Do not force-restart a Mac while the update is still making progress. Keep a MacBook connected to power, leave its lid open, and let macOS complete its required restarts, which can include progress bars and blank screens. If the process appears genuinely stalled, more conservative guidance recommends waiting before forcing a restart because interruption can corrupt the installation.

How Do I Reinstall macOS Without Erasing My Personal Files?

Start macOS Recovery, then choose Reinstall macOS. On Apple silicon, hold the power button until startup options appear, choose Options, then select Continue; on an Intel Mac, hold Command-R during startup. Before reinstalling, you can use Disk Utility in Recovery to select Macintosh HD and run First Aid if an installation error may involve the startup disk.

Most Mac update problems come down to compatibility, available storage, a weak connection, or an installation that needs more time. Begin with Software Update, back up before installing, and keep the Mac powered and awake through every restart. When a download or installation repeatedly fails, work through connection checks, Safe Mode, Disk Utility First Aid, and macOS Recovery before considering later recovery options.

References

Sources read in September 2026.

Eric Dawson

I'm Eric Dawson, and I write The Money Watch from north Columbus, Ohio. Most of what I cover comes from my own life: renting, a 2014 Honda Fit, parking, computers, food and the bills behind all of it. I spent four years in an apartment-property office and eleven on a distributor's operations desk, reading leases and invoices. Where you need real information, I research the maker's or agency's own page and independent sources and report what they publish. I don't give tax, investment, legal or medical advice.