unable to verify Mac os

I have a MacBook Pro (16-inch, 2019) running, Big sir. I have been trying to update Venture for a while now still no luck. Keep getting the "unable to verify Mac OS" message with about 53 minutes remaining. Yesterday I erased the hard drive to have a fresh start, thinking this would help, but I Still got the same error message. Any help would be great.

MacBook Pro

Posted on Feb 14, 2023 05:34 AM

Similar questions

Install OS X Lion, software could not be verified - fix. If you come across the above error "Software could not be verified" after downloading Mac OSx Lion, Mountain Lion, Yosemite, the way to fix it is to change your computer's time to a point in the past. The problem is that the X.509 certificates that are used to sign and verify these old software versions have expired and the installation fails when doing an integrity check (expired certificates.) I changed my computer from 2023 back to 2013 and no problem. The software could not be verified. It ma… - Apple Community https://discussions.apple.com/thread/252987018 This is specific to much older Macs & iMacs. Procedure should be something like this: * Download .dmg from Apple * Open the .dmg and install the installation program * Change your computer's time to something history Launch the installation program Reboot when instructed. When install is finished, fix your computer's time
1332 2
Can't verify my OS So I'm trying to download a new operating system on my mid 2009 MacBook pro 15 in. When I try to boot in recovery mode nothing happens. My screen is showing me a white screen and flashing a gray folder with a question mark in it. That happens whether I try to boot in recovery mode or simply turn it on. I've created a flash drive that has the OS on it as a boot installer. Now with that, when I try to go in recovery mode the flash drive I've created pops up and it lets me click on that and continue. It brings me to a language selection after loading with the apple logo and loading bar for a bit. Once I select the language I want it brings me to the OS X Utilities. In that it shows 4 options. Restore from time machine, install OS X, get help online and Disk Utility. I click on the install option. And it brings up the OS X El Capitan logo and the continue arrow. Click that then I have to agree to the terms. Click agree and another small window drops down asking again to agree or disagree and I click agree. Then it brings me to where I select the drive I want to download the OS to and it shows my hard drive and then the flash drive but the flash drive is in grey so I can't select it which is ok. I click the hard drive and click install and starts. Shows the hard drive I've selected with a loading bar under it but before it can start loading another window drops down, stopping the download, and says "This copy of Install OS X El Capitan application can't be verified. It may have been corrupted or tampered with during downloading." I click ok and it brings me back to the 4 options I said earlier. Please Help. [Edited by Moderator]
1809 2
Restoring os My MacBook Pro won’t verify the computer
303 1

1 reply

HWTech

Level 9

66,740 points

Feb 14, 2023 08:48 AM in response to nomac1972

Make sure all external devices are disconnected in case one of them is causing a problem. You can try performing an SMC Reset (the procedure is different for 2018+ Macs) and a PRAM Reset (hold for two chimes if possible).

Try to "Restore" the firmware which will reset the T2 security chip as well as push a clean copy of macOS onto the internal SSD. Unfortunately this procedure requires access to another Mac running macOS 10.15+.

Revive or restore an Intel-based Mac using Apple Configurator - Apple Support

If this does not work, then you will likely need to have Apple or an Apple Authorized Service Provider examine the laptop.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

unable to verify Mac os

Welcome to Apple Support Community

A forum where Apple customers help each other with their products. Get started with your Apple Account.

Learn more Sign up