If you've upgraded to macOS Mojave or later, follow these steps to keep it up to date:
Choose System Preferences from the Apple menu , then click Software Update to check for updates.
If any updates are available, click the Update Now button to install them. Or click ”More info” to see details about each update and select specific updates to install.
When Software Update says that your Mac is up to date, the installed version of macOS and all of its apps are also up to date. That includes Safari, iTunes, Books, Messages, Mail, Calendar, Photos, and FaceTime.
To find updates for iMovie, Garageband, Pages, Numbers, Keynote, and other apps that were downloaded separately from the App Store, open the App Store on your Mac, then click the Updates tab.
To automatically install macOS updates in the future, including apps that were downloaded separately from the App Store, select ”Automatically keep my Mac up to date.” Your Mac will notify you when updates require it to restart, so you can always choose to install those later.
How to get updates for earlier macOS versions
Sadly, Apple doesn’t give users any direct warning when their operating system or Mac is no longer supported. Worse, when users check the App Store for updates (or on older Macs when users run Software Update), it misleadingly tells them, “No Updates Available” or “Your software is up to date.”.
These iGadgets Aren't Eligible for iOS 10 If you're excited to update to iOS 10, but your iDevice is a few generations behind, we've got some bad news.There's a lengthy list of Apple gadgets that won't be supported. For iPad models, you won't have the option to update if. Dec 26, 2018 I've been trying to update my MacBook (Early 2014) recently (to 10.13.2) and it won't update. It keeps saying that the update couldn't be installed. I tried updating by installing the updates from the apple websites, and it still won't update. It says that I don't meet the requirements to update. Apr 15, 2020 Eventually, Apple released a patch update to fix this issue. Hopefully the same will happen for macOS Catalina. Ensure your Mac and all your apps are fully up-to-date: From the menu bar on your Mac, go to Software Update. Download and install any available updates to macOS. Now open the Mac App Store and select Updates from the sidebar.
If you're using an earlier macOS, such as macOS High Sierra, Sierra, El Capitan, or earlier,* follow these steps to keep it up to date:
Open the App Store app on your Mac.
Click Updates in the App Store toolbar.
Use the Update buttons to download and install any updates listed.
When the App Store shows no more updates, the installed version of macOS and all of its apps are up to date. That includes Safari, iTunes, iBooks, Messages, Mail, Calendar, Photos, and FaceTime. Later versions may be available by upgrading your macOS.
To automatically download updates in the future, choose Apple menu > System Preferences, click App Store, then select ”Download newly available updates in the background.” Your Mac will notify you when updates are ready to install.
* If you're using OS X Lion or Snow Leopard, get OS X updates by choosing Apple menu > Software Update.
How to get updates for iOS
Learn how to update your iPhone, iPad, or iPod touch to the latest version of iOS.
Why Doesn't My Mac Have Software Update
Learn more
Learn how to upgrade to the latest version of macOS.
Find out which macOS your Mac is using.
You can redownload apps that you previously downloaded from the App Store.
Your Mac doesn't automatically download large updates when it's using a Personal Hotspot.
I am connected to the Internet and am able to use all features of any program on the Internet. However, when I try to do a software update my computer says it cannot connect because it is not connected to the Internet.
When i open network diagnostics it says that my Wi-Fi is working, my Wi-Fi settings are fine as are my network settings but my “ISP, Internet and Server” are not. What could the problem be and how do i fix this?
Why Doesn't My Mac Update Software Download
Try if you can access/visit a website using Safari. If that works I would (almost) rule out actual network issues
If it is an OS X update try repairing the disk permissions using Disk Utility http://macs.about.com/od/applications/ss/firstaid.htm
If it is an application update via the App Store make sure the app is stored within the Application folder as applications moved outside of can't be updates.
Feel free to report back if any of the tips in here so far didn't help.
If you have it, call AppleCare at 1800-MY-APPLE. You should have it automatically for the first 90 days, then for three years if you buy it.
perhaps the hard drive is corrupt somehow Restart the computer and hold down command-R as soon as you hear the chime, which will cause your computer to boot into recovery mode. Once there, open Disk Utility and repair the hard drive. If it succeeds, restart normally and try updating again. otherwise use Diskwarrior http://www.alsoft.com/diskwarrior/
Mac App Store: Cannot update App Store purchases or updates do not seem available http://support.apple.com/kb/TS4236?viewlocale=en_US This may occur if you have Spotlight indexing disabled on your startup (boot) volume. The App Store uses Spotlight indexing to know when applications have updates available and to process those updates. To resolve this issue, re-enable Spotlight indexing on your startup volume: 1.Open System Preferences from the Apple (?) menu in the upper-left menu bar. 2.Choose Spotlight from the View menu. 3.Click the Privacy tab. 4.Remove your startup volume from the list by selecting it and clicking the minus (-) icon in the lower-left corner of this window.
Other Mac users had the same problems. Check that link and see solution. Hopefully it will work for you also: https://discussions.apple.com/thread/2500433?start=105&tstart=0