The app will be deleted. If you do not see the cross sign on an app, then it means that the app was not downloaded through the app store OR it is one of the default apps of the Mac. Apps that weren’t installed through the App Store can be uninstalled through the Finder method. 3rd Party Methods. I know that clover r5123 and Big Sur are both in beta, but I was hoping someone here may have some pointers as to how to fix this. Specifically, when I try to download an app or an update from the App Store, the button to download/update for the app in question turns into the circle with a square in the center, but the download never starts. If you're using OS X El Capitan v10.11.5 or later and your App Store preferences or Software Update preferences are set to download new updates when available, macOS Big Sur will download conveniently in the background, making it even easier to upgrade. A notification will inform you when macOS Big Sur is ready to be installed. Click Install to.
macOS Big Sur finally saw the light of day in November 2020. As the latest operating system has lots of new features and improvements, and most of us want to install it as soon as we can. Most of the time, everything works out, and we’re up and running very quickly. Sometimes, however, it doesn’t go well, and you see a message saying that the macOS installation couldn’t be completed.
macOS Big Sur can't be installed on Macintosh HD
That's the most common message that shows up. What do you do then? We’re glad you asked because we have some answers below.
Before you attempt to install any major update to macOS, you should back up your Mac. If you use Time Machine, you can run a manual backup using that. If not, run a backup using whichever backup tool you usually use. If you don’t run scheduled backups – and you really should – clone your boot drive to an external disk before you start.
Why won’t macOS Big Sur install?
There are several possible reasons:
- Your Mac doesn’t support Big Sur
- The update couldn’t be downloaded
- You don’t have enough disk space
- There’s a conflict in your system preventing the process from completing
Check if your Mac is compatible
Here’s the list of Macs that are supported by Apple for installing Big Sur. If your Mac isn’t on it, it’s unlikely you’ll be able to run Big Sur.
- Any Mac Pro or iMac Pro
- MacBook Pro and MacBook Air 2013 and later
- iMac and Mac mini 2014 and later
- MacBook 2015 and later
What to do if the macOS Big Sur download is stuck
- Check Apple’s System Status page for information about possible server issues on Apple’s end.
- Check your internet connection.
- Try to download it from the Mac App Store if your first attempt was through Software Update. If your first attempt was in the App Store, try Software Update.
If you see a message telling you that macOS cannot be installed or Big Sur is stuck on the progress bar, try the following.
Free up disk space with CleanMyMac X
You’ll need around 16GB of free space to upgrade to macOS Big Sur. However, even if you have more than that, your Mac may tell you that you can’t upgrade because it thinks you don’t have enough free space. This can happen for a number of reasons. The simplest solution is to free up more space. And the best way to do that is to use CleanMyMac X.
This app makes it very quick and easy to free up several gigabytes of space by getting rid of junk files that clog up your Mac. It can also be used to uninstall applications, identify large and old files, illustrate what’s taking up the most space, and even protect your Mac from malware. Here’s how to use it to free up space quickly.
- Download and install CleanMyMac X. It’s free to try it out.
- Press Scan.
- Press Run to remove all the junk files CleanMyMac has found, or click Review Details to find out more.

As you can see from the screengrab, I was able to save 10GB of disk space in just a few minutes.
macOS Big Sur stuck on 12.18 GB out of 12.18GB
Another common issue is when your download size reaches 12.18 GB and then the download just freezes. In this situation, don’t trust the progress bar report — it’s most likely a miscalculation. In fact, your download is still in progress — but the system is reading it differently.
App Store Not Working On Big Sur
So how to fix macOS Big Sur stuck on 12.18 GB
- 1. Disconnect from the internet (or turn off the Wi-Fi)
- 2. Re-connect so you’re online again.
- Check for the update and click the upgrade button.
Your download should resume — this time it may go faster as some components have been downloaded already.
If the progress bar stops again, disconnect from the internet and repeat the above steps.
So, 'reviving' the lost connection seems to be the fix.
Optimize your storage
As an alternative, you can also use Apple’s built-in storage management tool to free up some storage space.
- Click on the Apple menu and choose About this Mac.
- Choose Storage.
- Press Manage.
- Review the recommendations and follow those that are relevant.
- Go through each of the sections in turn and identify then delete files taking up lots of disk space – like old iOS backups, for example.
- When you’re done, press Command-Q to quit.
Try installing macOS Big Sur in Safe Mode

Sometimes launch agents, login items, or extensions that load when your Mac boots can cause problems when installing a new version of macOS. To check whether that’s the problem, you can restart your Mac in Safe Mode and then try updating it to Big Sur.
- Shut down your Mac.
- Wait ten seconds, then press the power button.
- As soon as your Mac starts up, press Shift.
- Release the Shift key when you see the Apple logo.
The free version of CleanMyMac X can also help manage and remove launch agents and login items. Choose the Optimization module in the sidebar to get started.
There are lots of reasons why your Mac won’t update to Big Sur. Thankfully, most of them can be fixed. If you follow the steps above, and particularly if you use CleanMyMac X to help, you should have it installed and running in no time.
Apple today released macOS Big Sur 11.1 to the public after a month with beta releases. The update adds support for AirPods Max, the long-awaited App Store privacy labels, and Apple News widgets.
macOS 11.1 is the first major update of Big Sur since Apple released macOS 11 to all users last month with a redesigned interface, Control Center, new Messages app, Safari enhancements, support for the new M1 Macs, and much more.
Today’s update adds support for AirPods Max, Apple’s new over-ear headphones announced last week. Users can now wirelessly pair AirPods Max with compatible Macs and benefit from the Adaptive EQ, Active Noise Cancellation, Transparency Mode, and Spatial audio.
With this update, users will now have access to the App Store privacy labels with a detailed report on what user data each app available on the App Store can access. In addition, macOS Big Sur 11.1 comes with new Apple News widgets, a new Apple TV+ tab on the TV app, support for the Apple ProRAW format, and optimizations for Macs running with the M1 chip.
You can now update your Mac to the latest version of macOS Big Sur by heading to the Software Update menu in the System Preferences app.
Check out the full release notes of macOS Big Sur 11.1 below:
macOS Big Sur 11.1 introduces support for AirPods Max, TV app enhancements, Apple News widgets, and privacy information on the App Store. This release also includes bug fixes for your Mac.
AirPods Max
- Support for AirPods Max, new over-ear headphones
- High fidelity audio for rich sound
- Adaptive EQ adapts sound in real time to the personal fit of ear cushions
- Active Noise Cancellation to block out environmental noise
- Transparency mode to hear the environment around you
- Spatial audio with dynamic head tracking for a theater-like listening experience
Apple TV
- An all-new Apple TV+ tab makes it easy to discover and watch Apple Original shows and movies
- Enhanced search so you can browse by category such as genre and see recent searches and suggestions as you type
- Top search results shown with the most relevant matches across movies, TV shows, cast, channels, and sports
Apple News
- Apple News widgets are now available in Notification Center
App Store
- New privacy information section on App Store pages that includes a developer-reported summary of the app’s privacy practices
- In-game dashboard within Arcade games recommends new Arcade games to play
iPhone and iPad apps on Macs with M1
- New window options for iPhone and iPad apps let you switch between landscape and portrait orientations or expand a window to fill the entire screen
Photos
- Apple ProRAW photos can be edited in the Photos app
Safari
- Ecosia search engine option in Safari
Air Quality
Itunes For Mac Big Sur
- Available in Maps and Siri for locations in China mainland
- Health recommendations are provided in Siri for the United States, United Kingdom, Germany, India, and Mexico at certain air quality levels
Big Sur Camping
This release also addresses the following issues:
- QuickTime Player might quit when opening a movie with a timecode track after upgrading from macOS Catalina
- Bluetooth connection status was not displayed in Control Center
- Reliability of unlocking your Mac automatically with your Apple Watch
- Trackpad scrolling speed may be faster than expected on MacBook Pro models
- LG UltraFine 5K Display may incorrectly display at 4K resolution on Macs with M1
Itunes Download For Big Sur
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