Jun 12, 2020 The version of macOS offered by macOS Recovery might vary in some cases: If macOS Sierra 10.12.4 or later has never been installed on this Mac, Option-Command-R installs the macOS that came with your Mac, or the closest version still available. And Shift-Option-Command-R isn't available. If you erased your entire disk instead of just the startup volume on that disk, macOS Recovery might. Jul 17, 2019 Quick Fix 1. Reset SMC to fix Mac won't boot after High Sierra update. Sometimes, if the Mac computer cables are not connected properly, you may not be able to boot it normally. So if Mac cannot boot after system update, you can reset SMC to fix Mac won't boot issue after macOS High Sierra update: 1. Shut down Mac computer and unplug all cables; 2.
Reinstall from macOS Recovery
macOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. All you need is a connection to the Internet. If a wireless network is available, you can choose it from the Wi-Fi menu , which is also available in macOS Recovery.
1. Start up from macOS Recovery
To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following sets of keys on your keyboard. Release the keys when you see an Apple logo, spinning globe or other startup screen.
Command (⌘)-R
Reinstall the latest macOS that was installed on your Mac (recommended).
Option-⌘-R
Upgrade to the latest macOS that is compatible with your Mac.
Shift-Option-⌘-R
Reinstall the macOS that came with your Mac, or the closest version still available.
You might be prompted to enter a password, such as a firmware password or the password of a user who is an administrator of this Mac. Enter the requested password to continue.
When you see the utilities window, you have started up from macOS Recovery.
2. Decide whether to erase (format) your disk
You probably don't need to erase, unless you're selling, trading in or giving away your Mac, or you have an issue that requires you to erase. If you need to erase before installing macOS, select Disk Utility from the Utilities window, then click Continue. Learn more about when and how to erase.
3. Install macOS
When you're ready to reinstall macOS, choose Reinstall macOS from the Utilities window. Then click Continue and follow the onscreen instructions. You will be asked to choose a disk on which to install.
- If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
- If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
- If the installer is for a different version of macOS than you expected, learn about macOS Recovery exceptions.
- If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.
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Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.
If your Mac restarts to a setup assistant, but you're selling, trading in or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.
macOS Recovery exceptions
The version of macOS offered by macOS Recovery might vary in some cases:
- If macOS Sierra 10.12.4 or later has never been installed on this Mac, Option-Command-R installs the macOS that came with your Mac, or the closest version still available. And Shift-Option-Command-R isn't available.
- If you erased your entire disk instead of just the startup volume on that disk, macOS Recovery might offer only the macOS that came with your Mac, or the closest version still available. You can upgrade to a later version afterward.
- If your Mac has the Apple T2 Security Chip and you never installed a macOS update, Option-Command-R installs the latest macOS that was installed on your Mac.
- If you just had your Mac logic board replaced during a repair, macOS Recovery might offer only the latest macOS that is compatible with your Mac.
If you can't get macOS Recovery to offer the installer you want, you might be able to use one of the other ways to install macOS.
Other ways to install macOS
- You can also install macOS from the App Store or Software Update preferences. If you can't install macOS Catalina, you might be able to install an earlier macOS, such as macOS Mojave, High Sierra, Sierra, El Capitan, or Yosemite.
- Or create a bootable installer disk, then use that disk to install macOS on your Mac or another Mac.
Every Year Apple release new macOS version with some bug improvements, Lost more Features for Students, Business and professional users. So Most of your Macs are able to update the latest version when it’s available official for you. macOS up-gradation is really simple easy that we can do from software update section over WiFi internet connection. Thousands of people are facing the same issues like MacOS update Failed, MacOS Update Stuck in installation, Mac Stuck on Apple Logo and Something like that. we know that big MacOS upgrade takes more time to compare to small everyday update.
I personally coincided with the Mac Users who are tolerating the issues on My Mac not updating because of various reasons like install Failed because of slow or no internet connection, Some of the them saying Low Storage, Showing Errors with numbers that apple helps to fix me, corrupted Disk Data, Buggy Apps, Pending Apple ID account Verification, Security Issues like malware or Protection that prevent big modification in Mac File system that’s actually happen in big MacOS upgrade.
we are happy to help you, submit this Form, if your solution is not covered in this article.
macOS Upgradation process generally doesn’t harm your Data. but Clean install MacOS will definitely do. Take backup if you are not sure what I am doing. read my tutorial and go straight guide on how to update macOS Catalina from macOS Mojave with no data lose. Sometimes you wait more compare to other Mac system because of slow speed, Generally, this happens with old Mac Mini, MacBook Pro, MacBook Air and iMac as well. if you wish MacOS Installation want to make faster so make your Mac little bit faster by doing Uninstall unused Apps, Clear or Cluttered desktop, Move Unnecessary file into the trash. Open Activity Monitor and Find the program that running in the background, Select it and click on close button to stop or Quite app completely on Mac. Finally, you will get more Gbs of storage, No More process load on the Mac processor.
Hope you are more clear what are the issues that affect and unable to install macOS Catalina on your Mac. Go with that one by one and Successfully install New MacOS Catalina this time.
Before that, Get Ready with
- Good Internet connection: Near to 7 Gigabytes of Software Update first download on your Mac, So Proper Internet connection will save time. also, in between your Mac Verify any time while you upgrade System. So a constant connection is required. Otherwise, the process will terminate itself. You can use Ethernet cable connection if WiFi Dropping out during MacOS Catalina Update. Turn off WiFi and Plug Ethernet cable, that it.
- Use Proper Mac Login Password or Apple ID password: most of the time Mac ask for system password, but sometimes you need to verify with Apple ID password. read the message first and enter a valid password.
- Efficient Battey on MacBook: Don’t Start installation if you don’t any power source around you or Charging cable. Prepare with download New macOS file.
- Memory Space: Keep At least 10 Gigabytes of Free space. Find the Solution Here, MacOS Download Stuck or Stop/Waiting before installation starts.
Handy Solution for troubleshooting Mac is Stuck on Install macOS Catalina, Mojave, and Failed Update
Fix 1: Resetting PRAM on MacBook, iMac, MacMini is a pretty Easy Fix
On MacBook or Other macs has two types of TAM, one is PRAM and second is VRAM. Both RAM store some information to quickly access during restart, also we can reset this information like the same way. Let’s do it. because most of the people spotted is helpful in these tricks.
First Shutdown your Mac, To turn off Long press and hold on the power button.
Now Press Power button start, After that As quick as possible press Option + Command + P + R Keyboard keys at once. continuously press and hold those keys until you hear the startup sound for the second time.
Now, wait for Until you see the Apple logo on the screen, after that continue with update and install New MacOS Catalina Update.
Fix 2: Restart your Mac and Try Update/install Latest MacOS
People don’t like to restart the system, because of too many software and apps are running. But it’s tricky solutions that fix all types of software bugs and connection issues as well. Somewhere software glitch and file system waiting for a reboot or restart system. becuase of it’s necessary. Go with the normal turn off Mac and Turn on again.
- Go to Apple logo on Mac.
- Next, click on the Restart option.
- Go with successfully restart your mac and Wait for that time.
Now Go with the Traditional ways to download and install new Software MacOS that apple is recommended on Released time. here you are looking for Update MacOS Catalina. Follow the below steps and Found helpful.
- To download the latest macOS update from App Store, Open App Store on Mac.
- Type MacOS Catalina, Just like mac app search and download.
- Now, Tap on Download button, Enter Valid Apple ID and Password if App Store Ask.
Fix 3: Force Quite App or Uninstall App that’s Buggy
Too many apps running on your Mac and Backgroud process as well. I recommend to turn off as possible. To check out all the running apps/programs on your Mac. open Activity monitor and Check the RAM Cunsumptions and Not Responding app. Follow the below steps to quickly find Apps that are not in use and Remove Buggy app.
- Open Spotlight search. Use Command + Space key. and type Activity Monitor on your search bar.
- Next, Under the CPU Tab, Find all running apps with a name. Select the App name, and click on the close mark to quit app and process as well.
- That’s it.
Fix 3: Check Internet Connection: Turn off/Turn on WiFi
Installation is required continuous wifi signal and internet connectivity. if you know that, your internet has WiFi Dropping issues, try another WiFi or Use Ethernet Cable. Sometimes internet WiFi status is showing connected but no internet access from that. that’s misguide giving the result of installation failed and stuck on Mac.
Use your Friend’s internet connection if there is a problem with the (ISP) Internet service provider.
Fix 5: Manage Storage On Mac, Free Up Quick as Possible
In Recent MacOS, Apple giving amazing tools that take care of all the data and suggest you delete the app, Large Files and Folders so we can quickly free up storage any time. Some Third-Party Mac Cleaner software also gives an amazing result.
- Go to the Apple logo on Mac.
- Select About this mac under the Menu options.
- Now, Click on Manage Tab and Review all recommended settings for free up storage.
Free up storage is always not work. becuase this is the part of solutions. People who have actually a problem with Storage can fix using this. But some OS Bug issues with can solve in Safe Mode only. checkout next solution for Update MacOS Catalina in Safe mode.
Fix 6: Update in Safe Mode
try to update macOS Catalina on Mac is Safe more. Safe mode help to fix the issues with startup disk. This mode is also called a safe boot. Safe mode only loads Kernal Extension when you start mac, also This mode repair directory issues. Safe mode Delete Cache Files, Font Cache, and Kernel cache as well. here I define how to put your Mac in Safe mode and Update MacOS Catalina after that Exit your Mac from Safe mode.
- First Sign out or Turn off Mac using the Power button.
- Now press the Power button to start, at the same time also press and hold the shift key.
- Now on Login screen of mac, you will see Watermark text, Safe Mode at the top right corner of the screen.
- Do the installation process as of explained above steps. Once you install macOS successfully, Restart your Mac and your Mac will exit from safe more.
Fix 7: Erase Drive and install New MacOS [Clean install]
Fix 8: Forgot Apple ID password used on Mac
Fix 7: Clean installation of macOS 10.15 Using Flash Drive or Reinstall
First is Create Bootable Drive and install it [Hard Ways]
Clean installation of macOS On Mac is not easy for not experienced users but they can do it. in this process, we need a USB Flash drive and Run command to erase Drive, and Create Bootable USB Drive for all mac According to 9to5mac. Follow the step by step guide to run command carefully and make Start installing new MacOS.
Second is Reinstall New uprooted MacOS on Mac [Drive Easy Method]
I assume that MacOS Catalina is installed and running on Mac. Now We have alternate options for install supported latest MacOS on Mac. First your Mac is connected on Internet connection. after that Press and Hold power button until screen is off. Now Press power button once, as quick as possible Press and Hold Command + R key from keyboard at once.
> First Option is Restore From Time Machine Backup [No Data lose]: Hold those keys, until you see Disk Utilities on screen. Here is two options first is Restore from Time Machine Backup. [If you have taken backup in time machine then you can restore it here using this option, and no data lose].
> Second option is Reinstall MacOS [No Data lose]: This will install new copy of Mac OS. Go with this and Select your Hard Drive in to that we want install.
> Third Option is Erase Disk & Reinstall MacOS [Erase Drive and install New Copy]: If you have a serious problem with drive data and Unsupported Apps that are installed on Mac. But can’t remove because Mac doesn’t turn on. So First Go with the Disk Utilities, And Select MacOS drive and Erase it.
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now close Disk Utilities window and You will see macOS utilities window, Go with Reinstall MacOS option.
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Apple Guide to Restore from Time Machine on Mac
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Hope you successfully installed new MacOS 10.14 on your Mac Fast and Easily. Fix out all the error and troubleshooting tips.