If you replaced your internal Apple SSD with other drive or SSD, the Monterey update may get stuck.

You can boot into rescue mode, checked the partitions with 'diskutil list' and 'verifydisk' (terminal), and fixed the EFI partition 'diskutil repairdisk (your EFI disk/partition) '.Īlso, make sure you're update the Monterey on an Apple SSD. It's an MS-DOS formatted little slice that's needed when updating the computer firmware. Actually, it turns out to be a corrupted EFI partition. Many users said as they try to update to Monterey, the installer noticed that there is an error checking the firmware. The inability to verify firmware error is the mainly reported macOS update problems. macOS 12 Monterey Update Freezes on Firmware Confirmation Just make it done by uninstalling unused applications and app caches, deleting old devices backups, deleting unnecessary media files from iTunes, emptying trash can, clearing temporary files, compressing large files to smaller size and so on.

If your Mac update failed definitely owing to the storage space, the only thing you need to do is to free up the space on Mac. To make sure how much space your Mac has left, from the Apple menu, select About This Mac > More Info > Storage. So if your Mac computer almost ran out of the storage space, your macOS update stuck at the beginning for sure. But in fact, you should have at least 26GB available for Monterey update. In theory, Monterey update requires at least 2GB RAM and 14.3GB available storage. Failed to Update macOS Owing to Insufficient Storage Read more: What to Do If macOS Monterey Installation Stuck/Frozen/Slow 3. Wait for a while and try again.Īpple resolved the issue, however, some users still get macOS Monterey installation stuck message. You can check on the status on Apple's support system status page. The macOS Monterey installation failed error is properly caused by overloaded Apple's server, there are tons of users rushing to download now. It got to about 10% or halfway and failed, some users cannot even reconnect. Installation failed, an error occurred while installing this update while upgrading to Monterey. macOS 12 Monterey Installation Failed, An Error Occurred Learn the right way to update to Monterey > 2. Overloaded Apple's server is also a main cause. So you need to go to Mac App Store and download the official macOS Monterey instead to fix it. Usually Mac update download failed error is originated that you download the package from somewhere other than Mac App Store or you just downloaded the Beta version. It's exceedingly annoying, but there is no way to bypass this step for macOS update. Try again later.', or 'An error has occurred.' Monterey download times are slow this year and are always failing.

That content can't be downloaded at this time. As you attempt to download macOS 12 Monterey installer, you may be noticed that 'Installation requires downloading important content.

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