If it turns out that the installation hasn't stalled be patient and wait for a few more hours. So if your computer is off, press the Start button, and if it's on, start the reboot sequence. How to Fix Slow Mac Performance with 10 Easy Ways, Screenshot on Mac Not Working | 4 Ways and Tips in 2020. To access Safe Mode press and hold the Shift key when you start up your Mac. If you click on the Software menu, you should get a screen to the right that shows your system software overview. As a final option you could restart the Mac in Recovery Mode (hold down Command + R at startup). This time, you don't fall asleep, you catch every turn you take, and you get where you're going just fine. We have a separate tutorial on how to reinstall MacOS using Recovery Mode. Open App Store and update your apps while in Safe mode. There are some steps you can take to get your Mac updated even if it seems stuck. You can delete this app with no problem; that's the installer, and it doesn't serve any purpose once the OS is installed. Sometimes updates can take 16 hours or more - especially on the days when Apple releases a new version of its Mac operating system. Sometimes it's worth leaving the Mac overnight to finish the job it's started. If we'd have had an ethernet cable handy we'd have used that. There were multiple reports of people having difficulties downloading Big Sur. You can boot your computer into recovery mode by starting it back up or restarting it. But, regardless, we were stuck in a loop. Wait while the Apple logo appears, and then, when the login window appears release the Shift key. You could search for Big Sur using Spotlight and try and install it - or you could delete the files and start again. When you do so you should see the option to Cancel the download. This is where your computer runs into a critical problem when it tries to turn on. You may get a message that reads "A critical software update is required for your Mac, but an error was encountered while installing this update. If you're having problems downloading a point update (not a complete new version) via Software Update or Mac App Store, you can use Apple's website instead. They are now accessed via System Preferences > Software Update, where previously they were downloaded via the Mac App Store. Alternatively, you might find that your Mac gets stuck in the installer with a message that "macOS could not be installed on your computer". We tried to quit the installer - we clicked on the Installer window and then from the menu above choose Quit MacOS Installer (alternatively Command + Q). © Copyright 2020 IDG Communications Ltd. All Rights Reserved. When the apple logo appears on the screen, press Command+R. If your Mac appears to have frozen during the install, it's worth listening to your Mac for signs of life - you may be able to hear whiring - and following the below advice. At first our download of Big Sur threatened to take a whole day - a typical sign that too many people are attempting to access the servers. ", we are here to help. You'll see below that even 20GB space isn't actually sufficient when it comes to installing macOS Big Sur though. Its response to hitting critical problems is to try to start fresh, so it reboots, but if the problem is with the system, it can get stuck in an endless loop of reboots and crashes. Imagine if you and a friend were driving down a highway you know when you fell asleep. When you finally get the software up and running we advise that you run Disk Utility to correct any issues that might have caused the problem in the first place. If you're not sure if you're in Safe Mode, hold down the option key, click on the apple icon at the top left corner of your screen, and click "System Information." In Mojave Apple changed the route users take to download a macOS Software Updates. Having located the Install Big Sur files we thought we would now be able to install it, except that when we tried to we were confronted with a request for 14GB space. Or click "More info" to see details about each update and select specific updates to be installed. There may be some apps that have new updates that are not compatible with your current operating system. When you're doing regular updates, it's a good idea to set them to run when you go to bed. Wait It Out. Here's what's causing them. An ex-Apple PR, Karen's career highlights include interviewing Apple's Steve Wozniak and discussing Steve Jobs’ legacy on the BBC. Your Mac can't be used until this update is installed. We'll run through the various problems you might encounter and the best fixes for them below. We suggest that you try moving closer to the router. This way we were able to boot up in Safe Mode. Press the power button and hold down the Shift key to start the Mac up in Safe Mode. Check Apple's servers. It can also help fend off problems before they start since it will prevent kernel panics over outdated drivers and the like. Either way, it fixed the problem for us that time. We attempted to start the download again and saw another message, this time suggesting that the file could not be downloaded. Sometimes things get slowed down because the Mac is taking a while to install one file behind the scenes and that's thrown the whole update time prediction out the window. Another way you might be able to get the macOS update to download and install is to use Safe Mode. If the Log screen shows that nothing is happening move on to the next step. This will be on the right side of the menu bar next to "Categories" and "Purchased." Having cancelled the download you should be able to start it again, hopefully without any problems this time. One key thing to remember: Apple indicates how much time is apparently left for an installation... Don't pay this any attention because it is NEVER RIGHT! Once the installer was downloaded and we were ready to install we continued with the installation. We stopped streaming radio, turned off other devices, and moved our Mac closer to the router. Plug the bootable installer into the Mac you wish to update. In this tutorial we'll look at what to do if your Mac stalls or freezes during an operating system software update, or if you see an error message indicating that there is a problem. It's not always Apple's servers that are to blame though. Download Recoverit Data Recovery for Mac and get started saving your files today. If any updates are available, click the Update Now button to install them. Read more: How to fix Wi-Fi problems on Mac. If you'd rather not pay we run through How to delete Other storage on the Mac. (If the link doesn't work it's https://www.apple.com/uk/support/systemstatus/). This update won't include the latest version of the software so after performing the update, check Software Update and apply the latest macOS update. If you've seen the warning: 'The macOS installation couldn't be completed' or the message: 'An Error Occurred While Installing the Selected Updates' we're here to help. And we also made sure that the option selected beside Cache was All Content. While the issue with Big Sur was live on 12 November Apple had the following text on the site indicating that there was a problem: "Users may not be able to download macOS Software Updates on Mac computers.". This will cause the Mac open in Startup Manager. As we mentioned earlier, Apple hosts software on its website, so you can download it from there if you are having problems with the usual method. Once your Mac is in Safe Mode, run through the same update process we discussed before. Computer trouble is always frustrating, and even more so with Macs because, to be frank, things don't go wrong very often on a Mac.

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