This article explains how you can fix the software update problem. More specifically, the focus of this article is on what you can do to when your Mac won’t update to the latest version of macOS.
I am not able to install the macOS Catalina 10.15.6 from a macOS Catalina 10.15.5. When I execute the update from Settings, the Mac restarts, shows for a second a ';progress bar" (like the. I’m trying to install to Catalina 10.15.6. I download the file and start the installer. But when it gets to choosing the HD to put it on, I get a yellow caution sign and it says, “macOS Catalina 10.15.6 Update can’t be installed on this disk. The volume does not meet the requirements for this update.”.
Some Mac users, unfortunately, have been and continue to be affected by various macOS software update issues where they may experience a stalled macOS update. By stalled, we mean that macOS updates won’t download and install successfully.
Sometimes, you may see an error message saying “The macOS installation couldn’t be completed” or “macOS could not be installed on your computer”.
Mac Won’t Update?
Please try the tips belove if you are unable to update your computer:
It is important that you back up your Mac before you do anything.
There could be a variety of reasons for this. Before you do anything:
- Make sure there is enough space to download and install an update. If not, you may see error messages. To see if your computer has enough room to store the update, go to the Apple menu > About This Mac and click the Storage tap. You can easily free up storage space on your Mac.
- If you see a “Update Not Found” error, see this article.
- Make sure that you have an Internet connection to update your Mac. You can troubleshoot your connection.
- Be patient. An update may take some time. Just waiting may fix your problem. Sometimes more than a few hours. Do not put your Mac to sleep or closing its lid. Also ensure than your Macbook, if it is a Macbook, it is plugged it into AC power.
- If the update does not complete, your computer may seem stuck or frozen, for an extended time, try to restart your computer by pressing and holding the power button on your Mac for up to 10 seconds.
- If you have any external hard drives or peripherals connected to your Mac, try removing them. And try to update now.
- Reset PRAM on your Mac and then try again. To reset PRAM, turn off your Mac and then turn it on and immediately press and hold the Option, Command, P, and R keys together for about 20 seconds.
- It is possible that your Mac may unable to reach the update server. There could be two reasons for this:
- You may have a slow internet connection. You may want to restart your router and modem to fix this problem. If you are using a Wi-Fi connection, try a wired connection, if possible.
- Or there could be issues with Apple servers. It is possible that Apple servers are overloaded as a lot of people may be trying to update. You can check if Apple servers are experiencing issues.
If you are still having issues, then you may try the followings:
Safe mode
Try updating your Mac in safe mode. Here is how:
- Startup your Mac in safe mode. To do that, turn off your Mac and then turn on your Mac and immediately press and hold the Shift key until you see the login screen. Then release the Shift key. And login.
- Now your computer is in safe mode. Try to update now.
- Then exit safe mode when you are done (in either case). To exit safe mode, restart your Mac normally, without pressing the Shift key.
Combo update
You can use a combo update to install Mac updates. Please note that before you continue, you may want to back up your Mac. You can back up with Time Machine or you can use iCloud.
Please note that combo updates let you update your Mac from a prior version of macOS within the same major release. A combo update is a combined update that means that it contains all of the changes since the original release of that major version. This further means that, using a combo update, you can update from macOS 10.15 directly to Mac OS X 10.15.2, skipping the 10.15.1. But you cannot go from, let’s say, 10.14.x to 10.15.x. For example, using a combo update, you cannot upgrade from macOS Mojave to macOS Catalina.
Please note that combo updates are huge. Here is how you can use them:
- Visit Apple’s combo updates site: https://support.apple.com/downloads/macos
- Find the right combo update. And download it. As stated above, they can be huge. The combo will download as a .dmg file.
- Now quit all apps on your Mac.
- Double-click the downloaded file, if it does not start automatically.
- Follow the onscreen instructions.
Using macOS Recovery to update your Mac
If you still could not update, you may try this. To do this, you need to restart your Mac from macOS Recovery. Using the method below, you will be able to upgrade to the latest macOS that is compatible with your Mac. Here is how:
- Turn off your Mac.
- Turn on your Mac and immediately press and hold the Option-⌘-R keys together until you see the Apple logo or the spinning globe icon.
- Login.
- Click Reinstall macOS and follow the onscreen instructions.
See also: How to fix Catalina update problems
MacOS Catalina is a significant upgrade and brings with it many improvements. But like every new OS, it’s not without its problems. One of those is that it causes some Macs to run more slowly than they did under Mojave. We know from the system requirements that it’s more demanding of resources than its predecessor, which is why it won’t run on some older Macs that could run Mojave. Happily, there are things you can do to boost performance. Here’s how to speed up Catalina.
macOS Catalina running slow: what do to?
To make macOS Catalina faster, you have to know what’s slowing it down. So do this:
- Go to Applications>Utilities and launch Activity Monitor.
- Click on the CPU column heading to order processes according to how many CPU cycles they are using.
- If you see one that’s using a huge amount more CPU cycles more than anything else, that’s the problem. Use the Quit Process button to quit the process and speed up your Mac, or if it’s a browser tab causing the problem, just close it in the browser.
- If the CPU column doesn’t reveal anything, do the same with the memory column and look to see if any process is using a huge chunk of RAM.
1. Stop applications launching at startup
Why I Can't Update My Macbook Pro To Catalina
If the speed problem you’re having is that your Mac takes much longer to startup now that you’ve installed Catalina, it could be because you have lots of applications that are automatically launching at startup. You can prevent them auto-starting like this:
- Click on the Apple menu and choose System Preferences.
- When it has launched, select the Users & Groups pane.
- Select your user account.
- Click the Login Items tab
- Check the box next to any items you want to prevent automatically running at startup.
- Press the ‘-‘ button at the bottom of the window.
- Quit System Preferences.
That’s the long way to get rid of startup items. There is a much quicker way that I prefer to use. CleanMyMac X has a tool that will quickly remove startup programs on Catalina. Here’s how to use it.
- Download and install CleanMyMac X.
- Launch it.
- Choose the Optimization tool in the left hand sidebar.
- Select Login Items
- Check the box next to the ones you want to remove.
- Press Remove.
2. Remove Launch agents
Launch agents are similar to startup items except that they are not full applications, they are additional programs that add functionality to a related application. They launch at startup and could be a reason Catalina i
s slow to boot. Unfortunately, tracking them down manually on your Mac is difficult and time consuming. However, happily, CleanMyMac X can do it for you. Here’s how to remove launch agents.
s slow to boot. Unfortunately, tracking them down manually on your Mac is difficult and time consuming. However, happily, CleanMyMac X can do it for you. Here’s how to remove launch agents.
- Launch CleanMyMac X.
- Choose the Optimization tool, as you did for Login items.
- This time, choose Launch Agents.
- To disable a launch agent, click the green dot to the right of it.
- To remove a launch agent, check the box next to the launch agents you want to remove.
- Press Remove.
3. Close hundreds of tabs
Keeping lots of browser tabs open is convenient, but each one uses resources and they mount up. If, for example, a tab is displaying a page which has lots of animation or auto-running video on it, it will slow your Mac down. Apple magic keyboard versions. So close all the browser tabs you don’t need.
4. Take control of your Spotlight
If you have Spotlight set to its default, it will index every folder on your Mac, including those on external drives that are mounted. And indexing can slow down your Mac. You probably don’t need to search the contents of, say, your Downloads folder, or Library directory. Here’s how to exclude folders from Spotlight indexing.
- Go to the Apple menu and choose System Preferences.
- Select the Spotlight pane.
- Choose the Privacy tab.
- Press the ‘+’ to add folders to be excluded and then navigate to them, or just drag folders onto the window to exclude them.
- Quit System Preferences.
5. Update applications
Mac OS Catalina performance may get worse if applications on your Mac are out of date. Developers update applications regularly for all sorts of reasons. Most updates include bug fixes and performance improvements, so it’s important to keep them up to date. For apps that you download from the App Store, it’s easy. Just launch the App Store, go to Preferences and select Automatic Updates and your apps will always be up to date. For other apps, you’ll have to launch each one and check for updates from the application menu. Happily, there is a way you can update all your apps in one go using CleanMyMac X. Can you see how useful it is?
Why I Can T Update My Macbook Pro To Catalina
- Launch CleanMyMac X
- Select the Updater tool in the Applications section.
- Press Select All.
- Press Update.
6. Shut down your Mac regularly
Modern Macs, especially MacBooks, MacBook Airs, and MacBook Pros are designed to be able to run and run without being restarted, thanks to their low power sleep mode. However, shutting down you Mac does more than just conserve energy. It clears temporary files, like swap files that are used as virtual memory, and it frees up RAM. Restarting your Mac regularly will keep it running quickly and smoothly.
7. Add more RAM
Sometimes, the only solution to fix macOS Catalina speed is to update your hardware. Adding more RAM will almost always make your Mac faster, whether it’s running Catalina or an older OS. If your Mac has RAM slots available and you can afford it, adding more RAM is a very worthwhile investment.
There are many tools that claim to speed up your Mac. Don’t believe apps that tell you that “your Mac is hijacked by virus” — this is a well-known scam. On the other hand, there are apps that help you better manage memory on Mac. For example, the app we’ve told you about, CleanMyMac X, has a tool called Speed that disables heavy-memory consumers. And this program is actually notarized by Apple.
- Give it a go in a free version — no obligations:-)
- Install the app and click Optimization
- After running optimization tools, click the Maintenance tab
If macOS Catalina is very slow, there are lots of ways you can speed it up. Follow the steps above and it should be running smoothly in no time.
These might also interest you: