I am trying to install Quick Time, Java for Mac OS X 10.4, Release 9, iTunes, Security Update 2009-002, Software Updates. I get 'None of the checked updates could be installed. Software Update could not expand the package correctly.' Apr 30, 2020 If your Mac is using a firmware password, the lock icon appears when you try to start up from another disk or volume, such as an external drive or macOS Recovery.Enter the firmware password to.
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Mac fails to boot or start after the macOS update. Whatever is preventing your Mac from starting up, follow these 5 simple solutions to get it working again. If you have data loss problem after macOS update, EaseUS Data Recovery Wizard for Mac provides tried-and-true data recovery service to you.
This page covers 5 fixes for Mac won't boot or start issue after macOS Catalina, Sierra or older macOS update issue. If you are with this issue, follow to make your Mac computer work now:
macOS has now been updated to 10.15, and many Mac users are trying to upgrade to the newest version. While for most it’s a usual pleasurable experience, for some this update had downsides. Some users complain that their Mac computers won't boot after installing new macOS Catalina. When Mac fails, it usually can't boot or start up properly. If you are faced with this situation, the most important thing should be recovering data from the unbootable Mac because:
EaseUS Mac data recovery software is able to recover data from unbootable Macs after update. It creates a bootable media that enables you to recover data from Mac hard drive (If you only have one Mac). What's more, it recovers data from failed internal Mac hard drive, APFS boot drive, and unmountable APFS boot volume, etc. If you have two Mac devices, take out the hard drive and connect it to the other Mac. Download EaseUS Data Recovery Wizard for Mac on that Mac device, and recover data from the hard drive.
Then, you can read on and Fix the 'Mac won't boot after update' issue after you have successfully got data from the drive.
1. Reset the PRAM / NVRAM
NVRAM refers to special memory sections on your Mac that store data that persists even when the Mac is shut off, such as volume settings and screen resolution. Resetting that data isn't harmful! In some cases, after performing this step, your Mac will restart normally.
You may see a progress bar on startup. If the progress bar fills up and then the Mac starts up, you're probably good to go. If not, reset SMC.
2. Reset the SMC
In some situations, you may need to reset your Mac's SMC (System Management Controller).
If you've got a Mac desktop, unplug it for 15 seconds and then plug it in and after five seconds press the power button.
3. Boot Mac in Safe ModeSoftware Update Window Won't Load Mac 10
Safe Mode is a stripped-down version of the Mac operating system that can be useful if you are trying to troubleshoot issues with your Mac.
Download Microsoft Windows Update Software
Wait patiently till Mac computer finish the reboot process.
4. Run Disk Utility in Recovery Mode
If your Mac is booting but the operating system isn't loading up, you may have a corrupted drive. Luckily it is possible to fix this in Recovery Mode. In Recovery Mode you can restore from a Time Machine backup, use Disk Utility to verify and repair connected drives, check your internet connection, get help online using Safari, and install or reinstall macOS.
5. Reinstall macOS Catalina/Sierra![]() Download New Windows Update Software
The last method to fix macOS Catalina or Sierra fails to boot after update error is to reinstall macOS.
Why My Mac Wont Update
If your Mac does not respond after trying these tips, contact Apple Support or a certified Apple Repair Center. It’s likely there is a problem with your logic board or other internal hardware.
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