How I Did When Mac Unable to Check for Updates on Tahoe/Sequoia

Few Mac update problems feel as pointless as this one.

You open Software Update, it says “Checking for updates…”, and nothing changes.

No download. No progress bar. No useful explanation.

I don’t treat that as an installation problem first. I treat it as a connection, storage, startup, or installer-path problem — in that order.

Who this guide is for

This is for Mac users on recent macOS versions — including Sonoma, Sequoia, and Tahoe — whose **Mac gets stuck on checking for updates**.

The problem may look like one of these:

Your Mac stays on Checking for updates with a spinning wheel.

Software Update says it is unable to check for updates.

The request times out.

You see an update-related error before anything downloads.

This guide is not for a Mac that cannot turn on, cannot boot, or is managed by a workplace or school. In those cases, the issue may be hardware-related or controlled by an administrator.

The goal here is simple: get Software Update working again without jumping too quickly to risky fixes.

First, make sure the update is actually stuck

A short wait is normal.

Software Update has to check what your Mac model can install, whether the update is compatible, and what Apple needs to deliver for that specific machine. Apple’s own update guidance says Software Update shows only software compatible with your Mac, and Apple also recommends it as the fastest and easiest update path.

But if the screen has not changed after a long wait, I stop waiting and start isolating the cause.

The order matters. I do not start with Terminal or reinstalling macOS. I start with the fixes most likely to explain a stalled update check.

1. Refresh Software Update before changing anything

This is the smallest fix, so I try it first.

On macOS Ventura or later, go to:

Apple menu > System Settings > General > Software Update

On older versions, go to:

Apple menu > System Preferences > Software Update

If Software Update is already open, refresh it. Apple says you can check again by clicking Check for Update, pressing Command-R, or closing and reopening Software Update.

That sounds too simple, but it is worth doing before you restart routers, delete files, or change system settings.

2. Check the internet connection and Apple’s update service

A Mac can be online enough for browsing but still unreliable enough to fail during an update check.

I usually test this in three steps:

Open a few websites.

Switch to another Wi-Fi network or use a phone hotspot.

Restart the router if every device on the network feels slow.

Apple says the macOS installer needs a stable internet connection to download macOS and get firmware and model-specific information.

I also check Apple’s System Status page before blaming the Mac. If macOS Software Update is having a service issue, troubleshooting your own computer will waste time.

3. Check storage before you try the update again

Low storage does not always wait until the installation stage to cause trouble.

If the Mac is already tight on space, Software Update may stall, fail, or behave unpredictably while preparing the update process.

On macOS Ventura or later:

Apple menu > System Settings > General > Storage

On earlier versions:

Apple menu > About This Mac > Storage

Apple’s storage guide uses the same split: Ventura and later use System Settings > General > Storage, while earlier macOS versions use About This Mac > Storage.

I would clear space in this order:

Delete old installers from the Applications folder.

Empty the Trash.

Remove large files from Downloads.

Move videos, disk images, and archives to external storage.

Uninstall apps you do not use.

I would not install a “cleaner” app as my first move. macOS already shows which categories are using space, and Apple’s built-in storage view is the safer starting point.

4. Restart the Mac

A restart is boring, but it clears a surprising number of update problems.

Software Update depends on background processes. If one of those is stuck, restarting gives macOS a clean attempt without changing your files or settings.

After restarting, go back to Software Update and try again.

If the Mac still gets stuck on Checking for updates, I move to Safe Mode.

5. Try Software Update in Safe Mode

Safe Mode is useful because it starts the Mac with only the essentials.

Apple says Safe Mode can help identify whether an issue is caused by software that loads as the Mac starts up. Apple also says Safe Mode may help when installing through Software Update or the App Store because other software cannot interfere in the same way.

For a Mac with Apple silicon:

Shut down the Mac.

Hold the power button until startup options appear.

Choose your startup volume.

Hold Shift, then click Continue in Safe Mode.

For an Intel-based Mac:

Restart the Mac.

Immediately hold Shift.

Release it when the login window appears.

Once in Safe Mode, open Software Update again.

If the update appears there, the problem was probably caused by something loading during a normal startup.

6. Use Apple’s official download paths

If Software Update still does not work, I do not search random download mirrors.

I use Apple’s official macOS download paths.

Apple lists several legitimate ways to download and install macOS: Software Update, macOS Recovery, the App Store, a web browser for older versions, Terminal, and bootable installers.

There is one detail worth correcting from many older troubleshooting articles: for macOS Tahoe 26, Apple points users to Software Update or Terminal. For Sequoia, Sonoma, Ventura, Monterey, Big Sur, Catalina, Mojave, and High Sierra, Apple provides App Store links.

That matters because an update not appearing in the App Store does not always mean something is broken. Sometimes Apple simply routes that macOS version through a different official method.

7. Use Terminal only if you are comfortable with commands

Terminal can help when the graphical Software Update screen is stuck.

But I treat Terminal as an advanced step, not a magic fix.

Apple’s current guidance says you can use Terminal to download compatible macOS installers, and it gives this command format:

softwareupdate --fetch-full-installer --full-installer-version [number]

Apple also says you can run:

softwareupdate --list-full-installers

to see which macOS installers are available for your Mac.

The important word is compatible.

If Terminal says the update is not found, I do not keep forcing it. That usually means the version is unavailable for that Mac, not that the command needs more pressure.

8. Reset NVRAM or SMC only after the basics fail

I put this late in the process because it is often overused.

On Intel-based Macs, resetting NVRAM can help with certain stored system settings. Apple lists Option-Command-P-R as the Intel Mac startup shortcut for resetting NVRAM or PRAM.

SMC is even more specific.

Apple says SMC reset applies to Intel-based Macs only. If you have a Mac with Apple silicon, you do not need to reset the SMC; restart the computer instead.

So my rule is simple:

On Apple silicon, restart instead of looking for SMC steps.

On Intel, consider NVRAM or SMC only after connection, storage, restart, Safe Mode, and official download paths have failed.

9. Reinstall macOS from Recovery as the last normal fix

If Software Update still cannot get past the check, the current macOS installation may be damaged or blocked by something deeper.

At that point, I use macOS Recovery.

Apple describes macOS Recovery as the built-in recovery system for reinstalling the Mac operating system.

One important correction: reinstalling macOS is not the same as erasing your Mac.

Apple says reinstalling macOS does not remove your apps or personal data, though backing up first is still a good idea.

That backup step still matters. A reinstall is designed to preserve data, but I do not treat any operating system repair as risk-free.

If Recovery also fails, Apple recommends deeper steps such as repairing the startup disk, and only much later erasing the Mac if nothing else works.

What I would not do first

I would not erase the Mac first.

I would not install unofficial macOS packages.

I would not assume every update delay is a serious system failure.

I would not rely on third-party cleaner apps before checking Apple’s own storage tools.

And I would not keep repeating the same failed update check for hours. Once the spinner clearly is not moving, the useful question is not “How long should I wait?” It is “Which part of the update path is failing?”

Experience-based takeaways

The cleanest way to handle this problem is to move from low-risk to high-risk fixes.

My update-stuck framework is:

Refresh — reopen Software Update or press Command-R.

Verify — check Wi-Fi, another network, and Apple’s update status.

Make room — clear storage before asking macOS to prepare a large update.

Clean boot — restart, then try Safe Mode.

Use official paths — App Store, Recovery, Terminal, or Apple’s macOS download guidance.

Reset selectively — NVRAM and SMC are not first-line fixes, especially on Apple silicon.

Repair before erase — reinstalling macOS is different from wiping the Mac.

That order keeps the troubleshooting practical. It also keeps the safest fixes at the front, where they belong.

A Mac stuck on Checking for updates feels like an update problem, but it is usually a path problem.

The Mac cannot reach the update, prepare for it, verify it, or get past something already running on the system.

Start with the boring checks. They are boring because they work often enough to deserve the first attempt.

If this helped, save the checklist for the next macOS update cycle — and note the exact message your Mac shows. The wording usually points to the right part of the process.