If your Mac really freeze on installing, you can try to fix it with the following tips. There is no guarantee that each tip works on macOS update problems. But it covers the common measures when Mac users fails to install new macOS, hopefully any of these tips will work for your macOS installation frozen problem.
Tip & Tricks to Fix Mac Installation Stuck/Frozen/Slow Errors
1. Shut down, wait a few seconds and restart your Mac. Press and hold the power button to shut down and start your Mac back up.
Fixes to a Stuck Mac OS Sierra Installation Once you have checked everything and you are positive that your Mac has completely stalled, follow these steps: Restart your Mac. Press and hold the Power button to switch off your Mac. Wait for a few seconds and restart your Mac. Visit the Mac App Store.
2. Go to Mac App Store and open updates. If your Mac install stuck on Apple logo, gray/white/black screen when you were installing an App, you can go to Mac App Store to find this app and open the updates to survive from the macOS installation stuck situation.
3. Download & install the combo update. The Mac App Store isn't the only place to download macOS from. When your encounter problems on macOS Big Sur installing, you can try to download the combo macOS update from the Apple official site because the macOS installation package downloaded from Mac App Store may only include the essential files for your Mac update, instead of the combo updater with all the files required to update to macOS.
Summary: The Mac frozen or stuck on the login screen after entering password? This page is about how to fix this issue, so that you can log into your Mac again.
Admittedly, Mac computers are powerful and reliable. But the Mac is not immune to errors and corruption on the operating system level. Many users have reported the same problem: Mac stuck on a login screen.
In this case, the Mac won't let you log in, even you enter the correct password. And in some worse cases, the Mac computer won't even boot after the latest macOS update.
But in this post, you'll know how to fix the iMac or MacBook stuck on login screen issue. And your Mac would boot past the Mac login screen as usual.
Two situations how your Mac gets stuck on login screen
Before you go further, you should know there are two situations. It depends on if you have enabled FileVault to encrypt your startup drive.
For users who encrypt the system drive, you'll be asked for a password before you see the progress bar. In this case, the password usually would be accepted, but Mac is stuck on the loading bar. The loading bar may stop somewhere between 50% and 75%, or even 100%.
You can't log in to your Mac in this situation. It could result from a Kernel program incompatibility, file system corruption, or some core data lost.
Another case is that the startup is not encrypted by FileVault or APFS feature. You'll see the loading bar first, then the login screen appears. In this case, Mac computers like MacBook Pro won't log in but stuck at the login screen. It is usually caused by software conflicts, frozen login items or configuration errors.
How to fix the Mac stuck on login screen issue?
Anyhow, these methods would be helpful to fix the Mac stuck on loading or login screen issue.
Solution 1: Bypass Login items at startup
In case some login items stop you from logging in to your Mac, you can try these steps.
Solution 2: Boot your Mac in Safe Mode
Booting Mac into Safe Mode will only launch necessary programs. It's efficient to isolate incompatible software and repair some errors when Mac can't boot.
Mac Update Stuck Downloading
To boot into Safe Mode:
Sometimes you can't boot into Safe Mode because FileVault is enabled. You could decrypt your startup drive temporarily by booting Password Reset Assistant. This makes Safe Mode be able to check and repair errors before the login window appears.
If you succeed in turning off FileVault, you can restart your Mac normally. Then you can see if it brings up the login window. But if the progress bar is stuck underneath the Apple icon, you can try Safe Mode again after turning off the FileVault.
Solution 3: Reset NVRAM / PRAM
NVRAM, as well as PRAM, is a small amount of memory that your Mac uses to store certain settings and access them quickly. Thus, whenever your Mac won't boot, you can try to reset the NVRAM / PRAM.
Now, restart your Mac and simultaneously press Command + Option + P + R keys for about 20 seconds until your Mac restart automatically.
Solution 4: Boot your Mac into macOS Recovery mode
Mac could freeze on the login screen in a normal boot. But if you can boot into macOS Recovery Mode, you could troubleshoot this issue more easily. Recovery mode, sometimes called sigle-user mode, is a lite built-in macOS utility to check and repair some system issues.
To boot into macOS Recovery Mode:
If you successfully boot into macOS Recovery Mode, you'll see a macOS Utilities screen. (In some old system, it's called Mac OS X Utilities.) Then, you can do several things to fix the Mac stuck on login screen issue.
1. Repair the startup drive in Disk Utility
Probably, the Mac won't past the Apple logo or login screen because of file system or disk errors. Fortunately, you can check for and repair errors with the built-in tool First Aid.
2. Reset password
Mac could be stuck on the login screen after you forget the Mac's password. If you've entered the wrong password too many times, the system could be locked. Then the Mac won't accept the password even it's the right one.
In this case, you may want to reset your Mac's login password by:
Mac Os Stuck On Installing Software Update
You can also do this via Terminal.
With the password hint, you can change the password of a non-encrypted account. Then you can restart your Mac and log in to your Mac again.
3. Check and fix user preference settings
Sometimes, the .plist files related to user preferences could be changed. Then, your login information would not be accepted.
In this case, you can use the mv command in Terminal to rename the preference folder. And you can troubleshoot and nuke the problematic .plist file easily.
The other times you can't log in to the Mac just because the access to the user directory was changed. You can run chmod to change the access permission.
4. Reset launch services database
If the Mac gets stuck on the login screen and won't accept the password, you can remove the .csstore file ( a launch services database) in Terminal and fix the problem.
Mac Stuck On Installing Software Update
Hopefully, you can log in to your Mac after a rebooting.
5. Reinstall macOS in macOS Recovery mode
If you are not one of the situations above but see a folder with question mark on the Mac, you can simply reinstall the macOS to reset your Mac.
How to prevent data loss when you can't log into the Mac?
Probably, you have tried out all the solutions above, but your Mac kept stuck on loading or login screen. Then, you might want to erase your disk to reinstall macOS.
Mac Mini Stuck Installing Software Update
Before heading to erase the Mac hard drive, please make sure you have backed up your data. If you don't have backups, you can use Mac data recovery software like iBoysoft Data Recovery for Mac. It would be helpful to recover lost data from the unbootable Mac.
To recover data from unbootable Mac, you need to run iBoysoft Data Recovery in macOS recovery mode.
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