Shortly after the launch of Apple's new M1 Macs, we saw reports that attempts to restore and reinstall macOS on those machines right away could result in an installation error that would leave your Mac non-functional.
Specifically, the error message would read: "An error occurred preparing the update. Failed to personalize the software update. Please try again."
Over the weekend, Apple posted detailed instructions for users experiencing this issue. Specifically it seems the issue arises if you erase/restore your Mac before upgrading to macOS Big Sur 11.0.1.
If you erased your Mac with Apple M1 chip before updating to macOS Big Sur 11.0.1, you might be unable to reinstall macOS from macOS Recovery. A message might say “An error occurred while preparing the update. Failed to personalize the software update. Please try again.”
Use either of these solutions to reinstall macOS. You should then be able to use macOS Recovery as expected when reinstalling macOS in the future.
Apple suggests that you could create a bootable installer using another Mac. Otherwise, Apple details a more technical 17 step process using Terminal to restore your M1 Mac to a functional state.
If you are still having trouble, Apple recommends contacting support, and you can also visit our ongoing forum thread where users are troubleshooting this specific issue.
Thursday August 28, 2025 4:08 am PDT by Tim Hardwick
An iPhone 17 announcement is a dead cert for September 2025 – Apple has already sent out invites for an "Awe dropping" event on Tuesday, September 9 at the Apple Park campus in Cupertino, California. The timing follows Apple's trend of introducing new iPhone models annually in the fall.
At the event, Apple is expected to unveil its new-generation iPhone 17, an all-new ultra-thin iPhone 17...
Friday August 29, 2025 4:54 am PDT by Tim Hardwick
Apple and Samsung have reportedly issued cease-and-desist notices to Xiaomi in India for an ad campaign that directly compares the rivals' devices to Xiaomi's products. The two companies have threatened the Chinese vendor with legal action, calling the ads "disparaging."
Ads have appeared in local print media and on social media that take pot shots at the competitors' premium offerings. One...
Apple is expected to unveil the iPhone 17 series on Tuesday, September 9, and last-minute rumors about the devices continue to surface.
The latest info comes from a leaker known as Majin Bu, who has shared alleged images of Apple's Clear Case for the iPhone 17 Pro and Pro Max, or at least replicas.
Image Credit: @MajinBuOfficial
The images show three alleged changes compared to Apple's iP...
Following the announcement of Apple's upcoming "Awe dropping" event, on this week's episode of The MacRumors Show we talk through all of the new accessories rumored to debut alongside the iPhone 17 lineup.
Subscribe to The MacRumors Show YouTube channel for more videos
We take a closer look at Apple's invite for "Awe dropping;" the design could hint at the iPhone 17's new thermal system with ...
What mess? There was a bug in 11.0. Apple issued 11.0.1 but some people received the machine and immediately did a restore for any of various reasons. Since the machines shipped after 11.0.1 they had the bug in 11.0.
The fix is fairly simple for anyone that would have encountered the bug, ie: generic home users are not in the habit of doing a complete system restore out of the box, power users do that.
Biggest design overhaul since iOS 7 with Liquid Glass, plus new Apple Intelligence features and improvements to Messages, Phone, Safari, Shortcuts, and more. Developer beta available now ahead of public beta in July.
