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1. MAC OS SIERRA RESET TO DEFUALT KEYCHAIN UNABLE TO OBTAIN AUTHORIZATION FOR THIS OPERATION INSTALL
2. MAC OS SIERRA RESET TO DEFUALT KEYCHAIN UNABLE TO OBTAIN AUTHORIZATION FOR THIS OPERATION UPDATE
3. MAC OS SIERRA RESET TO DEFUALT KEYCHAIN UNABLE TO OBTAIN AUTHORIZATION FOR THIS OPERATION UPGRADE
4. MAC OS SIERRA RESET TO DEFUALT KEYCHAIN UNABLE TO OBTAIN AUTHORIZATION FOR THIS OPERATION FULL

In such cases, you can successfully restart your Mac by pressing and holding the power button on your MacBook for at least 10 seconds.

Or, your Mac may have booted up to a blank screen or circle with a line through it.

MAC OS SIERRA RESET TO DEFUALT KEYCHAIN UNABLE TO OBTAIN AUTHORIZATION FOR THIS OPERATION UPDATE

If you’re using a Late 2013 or Mid 2014 model of the 13-inch Retina MacBook Pro, you may have gotten an error saying that the update cannot be installed on this computer.

MAC OS SIERRA RESET TO DEFUALT KEYCHAIN UNABLE TO OBTAIN AUTHORIZATION FOR THIS OPERATION INSTALL

Unable to Install macOS Big Sur on Older MacBooks You can read this dedicated article for more information on errors with macOS Big Sur download and installation. To fix this, you can start your Mac in safe mode by holding the Shift key while your system boots and then try to download/install macOS Big Sur again. Internet connectivity issues or Apple’s server issues could likely be a reason for this error as well. Typically, this particular issue can be resolved by installing any available system software updates on the Mac first before going ahead with the major update.Īnother common error faced by Mac users is the “gateway timed out” error or “bad gateway” error.

MAC OS SIERRA RESET TO DEFUALT KEYCHAIN UNABLE TO OBTAIN AUTHORIZATION FOR THIS OPERATION UPGRADE

Some users have also reported to have received another error message stating “The package is missing or invalid” when attempting to download or upgrade to macOS Big Sur. While you wait, you can keep an eye on Apple’s System Status page to check for issues with macOS software update services. The best thing you can do is just wait for a while and initiate the update again. On the other hand, if you’re getting an “Installation failed – an error occurred while installing the selected updates” error message, it’s probably because Apple’s servers are busy due to the number of people trying to update their devices at the same time. If you’re getting an error that states “Update not found – the requested version of macOS is not available” when trying to update your device from System Preferences -> Software Update, you can visit the link to download from the Mac App Store and then initiate the download via the Software Update panel afterwards.

Although this is likely an issue when servers are overloaded, there are multiple other reasons why you can’t download the newest software. Several users have reported that they’re unable to download the macOS Big Sur software update or that the download is very slow. Issues with macOS Big Sur Download & Installation

MAC OS SIERRA RESET TO DEFUALT KEYCHAIN UNABLE TO OBTAIN AUTHORIZATION FOR THIS OPERATION FULL

If you’re one of those unlucky Mac users who’re affected by this recent update, simply read on to learn how you can troubleshoot and fix some of the most common macOS Big Sur problems that have been reported so far.īefore continuing, you’ll want to make sure you have a full backup of the Mac available with Time Machine or your backup method of choice to prevent any data loss. To make things easier for you, we have compiled a list of the most popular issues according to the community. Well, this year is no exception in that regard, as several users have already reported various problems relating to macOS Big Sur failed downloads, Wi-Fi issues after updating, battery drain, and more.

This article will work through some common issues and resolutions to attempt to fix and troubleshoot various problems encountered with macOS Big Sur.Įvery year, shortly after Apple rolls out a major macOS update to the general public, you often find a lot of people complaining about issues with the newest software version. Before you get too concerned though, we’re here to help.