On some Macintoshes (e.g. PowerBook 540c) if the user presses the command and power keys before the screen comes up, it will play the chimes of death; the chimes are a fraction of normal speed and there is no Sad Mac displayed. Causes of the Spinning Pinwheel of Death If you experience SPOD, it's likely that a single frozen app is the cause. It appears when an app exceeds the Mac's processing capability. The application could need to be updated or removed and reinstalled. Mac OS 9, the last major version of the Classic Mac OS, was introduced by Apple Inc. On October 23, 1999. After this operating system, Apple solely developed Mac OS X for all Macintosh computers. Question: Q: Blue screen of death, crash broke Mac OS but not Windows? I was just working on installing Fallout on my bootcamp partition of Windows 7. There was a corrupted file that gave me the blue screen crash, and I had to reload windows into safe mode to get it to quit crashing on me.
Moving to a new Mac? Before taking these steps, you can use Migration Assistant to move your files from the old Mac to your new Mac.
Create a backup
Make sure that you have a current backup of your important files. Learn how to back up your Mac.
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Sign out of iTunes in macOS Mojave or earlier
If you're using macOS Mojave or earlier, open iTunes. From the menu bar at the top of the screen or iTunes window, choose Account > Authorizations > Deauthorize This Computer. Then enter your Apple ID and password and click Deauthorize.
Learn more about deauthorizing computers used with your iTunes account.
Sign out of iCloud
If you're using macOS Catalina or later, choose Apple menu > System Preferences, then click Apple ID. Select Overview in the sidebar, then click Sign Out.
If you're using macOS Mojave or earlier, choose Apple menu > System Preferences, click iCloud, then click Sign Out.
You will be asked whether to keep a copy of your iCloud data on this Mac. You can click Keep a Copy, because you're erasing your Mac later. Your iCloud data remains in iCloud and on any other devices that are signed in to iCloud with your Apple ID.
Sign out of iMessage
Make sure that you have a current backup of your important files. Learn how to back up your Mac.
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Sign out of iTunes in macOS Mojave or earlier
If you're using macOS Mojave or earlier, open iTunes. From the menu bar at the top of the screen or iTunes window, choose Account > Authorizations > Deauthorize This Computer. Then enter your Apple ID and password and click Deauthorize.
Learn more about deauthorizing computers used with your iTunes account.
Sign out of iCloud
If you're using macOS Catalina or later, choose Apple menu > System Preferences, then click Apple ID. Select Overview in the sidebar, then click Sign Out.
If you're using macOS Mojave or earlier, choose Apple menu > System Preferences, click iCloud, then click Sign Out.
You will be asked whether to keep a copy of your iCloud data on this Mac. You can click Keep a Copy, because you're erasing your Mac later. Your iCloud data remains in iCloud and on any other devices that are signed in to iCloud with your Apple ID.
Sign out of iMessage
If you're using OS X Mountain Lion or later, open the Messages app, then choose Messages > Preferences from the menu bar. Click iMessage, then click Sign Out.
Reset NVRAM
Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. Release the keys after about 20 seconds. This clears user settings from memory and restores certain security features that might have been altered.
Learn more about resetting NVRAM or PRAM.
Optional: Unpair Bluetooth devices that you're keeping
If your Mac is paired with a Bluetooth keyboard, mouse, trackpad, or other Bluetooth device that you plan to keep, you can unpair it. This optional step prevents accidental input when the Mac and device have separate owners but remain in Bluetooth range of each other.
If you're unpairing Bluetooth input devices from a desktop computer such as an iMac, Mac mini, or Mac Pro, you must plug in a USB keyboard and mouse to complete the remaining steps in this article.
To unpair a Bluetooth device, choose Apple menu > System Preferences, then click Bluetooth. Move your pointer over the device that you want to unpair, then click the remove (x) button next to the device name.
Erase your hard drive and reinstall macOS
The best way to restore your Mac to factory settings is to erase your hard drive and reinstall macOS.
After macOS installation is complete, the Mac restarts to a setup assistant that asks you to choose a country or region. To leave the Mac in an out-of-box state, don't continue setup. Instead, press Command-Q to shut down the Mac. When the new owner turns on the Mac, the setup assistant guides them through the setup process.
No matter the model or condition, we can turn your device into something good for you and good for the planet: Learn how to trade in or recycle your Mac with Apple Trade In.
Comment Apple will today announce shiny new things. Supposedly it'll be the sixth Watch series, and a mid-tier iPad Air. I want it to announce something entirely more useful, though: a macOS x86 virtual appliance for all capable systems.
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Apple has famously resisted macOS being virtualized on computers other than its own, but now it's engineered a mass-extinction event for Intel Macs by shifting to Arm, that policy should change. We should be able to officially virtualize macOS on whatever suitable host hardware we have to hand. The operating system's fine print right now permits up to two virtual instances of macOS per Apple Mac machine with macOS installed. Non-Macs are prohibited from booting macOS, virtual or otherwise.
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Your humble hack thinks it is time to change that policy because it is inevitable that a small-but-significant number of macOS users run applications that are tightly coupled to Apple's Intel-powered hardware and will be a colossal pain in the rear to migrate to anything else. They can continue to run those software suites in their virtual macOS appliance on whatever suitable PC they have. There will also be some people who have their own special reasons for just wanting x86 macOS machines for the long haul.
Yes, those users can stock up on Intel Macs while they are still sold. And yes, Apple has promised brilliant translation of apps built for x86-powered Macs with the Rosetta environment on Arm. But Intel Macs won't last or be available forever, and users of software that just won't do well under Rosetta deserve another option.
That option is a macOS virtual appliance that runs on Hyper-V, Linux KVM, ESXi, Parallels, VirtualBox, VMware Workstation, and what have you, on whatever suitable hardware you've got.
That long-awaited, super-hyped Apple launch: Watches, iPads... and one more thing. Oh, actually that's it
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READ MOREI'm totally happy if these appliances won't run on future computers more powerful than today's Macs. While the idea of macOS on a hypothetical future four-socket PC brandishing a fistful of 32-core i9s sounds like fun, I understand that Apple will need primacy for its Arm-powered products.
I'm also happy without long-term security support for these appliances. Folks who need this kind of VM will know they're headed for strange places, but also know that a properly isolated virtual machine can mitigate some security concerns. Those among you who buy one as a curiosity will need to go into the purchase with eyes wide open.
Some of you may at this point suggest DIY x86 Macs, aka Hackintoshes, as an alternative. It's certainly possible to create a Hackintosh but they are a faff to get running reliably, in my opinion. They're also problematic because Apple's T&Cs for macOS only permit the software to run on actual Macs, not whatever x86 box you've built for the job.
I don't think Apple has anything to lose by selling macOS virtual appliances because I expect that Arm Macs will be exceptional and a desirable upgrade. The VM will have limited appeal, but those who want or need it will adore it.
So go on, Apple. Give us a virtual Mac for the ages. Think Different and change your policy. And once you see how much it's appreciated, feel free to do a macOS appliance for something like the Raspberry Pi, too. ®
