New Apple Support Articles

Mac computers with Apple silicon
This article shows you how to identify Macs with Apple Silicon and Macs with Intel Processor
https://support.apple.com/en-us/HT211814

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macOS Big Sur is compatible with these computers
This article informs you which Macs are compatible with macOS Big Sur and how much space is needed when upgrading from an older macOS. 
https://support.apple.com/en-us/HT211238

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If you need to install Rosetta on your Mac
Rosetta 2 enables a Mac with Apple silicon to use apps built for a Mac with an Intel processor.
https://support.apple.com/en-us/HT211861

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Download and install Windows support software on your Mac
This article shows you what to do after you use Boot Camp Assistant on your Mac. *Boot Camp requires a Mac with an Intel processor.
https://support.apple.com/en-us/HT204923

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About battery health management in Mac notebooks - Apple Silicon Macs
Mac notebook computers with Apple silicon use battery health management, a feature designed to improve the lifespan of your computer's battery. * This article only applies to Mac computers with Apple Silicon.
https://support.apple.com/en-us/HT211832

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About battery health management in Mac notebooks - Intel Processor Macs
Mac notebook computers with an Intel processor use battery health management, a feature designed to improve the lifespan of your computer's battery.
https://support.apple.com/en-us/HT211094

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Determine battery cycle count for Mac notebooks
This article shows you how to determine the number of cycles your Mac notebook's battery has.
https://support.apple.com/en-us/HT201585

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Get help with your Mac notebook battery
This article shows you how to optimize the life of the battery in your Mac notebook, fix battery issues, and get service.
https://support.apple.com/en-us/HT204054

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If your Mac doesn't start up all the way
This article shows you what to do when you encounter a different startup screen.
https://support.apple.com/en-us/HT204156

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If your Mac starts up to an exclamation point in a circle
This article shows you what do to do if Firmware needs to be revived or restored on your Mac.
https://support.apple.com/en-us/HT211868

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If your Mac starts up to Options with a gear icon
This article shows you what to do if your Mac starts up with an Options with a gear icon.
https://support.apple.com/en-us/HT211873

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If your Mac starts up to an Apple logo or progress bar
This article shows you what to do if your startup screen stops and won't continue.
https://support.apple.com/en-us/HT207019

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If your Mac starts up to a blank screen
this article shows you what to do if your Mac is stuck with a blank screen. 
https://support.apple.com/en-us/HT210905

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Identify your MacBook Air model
This article shows you how to identify which model of MacBook Air you have. 
https://support.apple.com/en-us/HT201862

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Identify your MacBook Pro model
This article shows you how to identify which model of MacBook Pro you have. 
https://support.apple.com/en-us/HT201300

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Identify your Mac mini model
This article shows you how to identify which model of Mac mini you have. 
https://support.apple.com/en-us/HT201894

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Identify the ports on your Mac
This article shows you how to identify the ports on your Mac. 
https://support.apple.com/en-us/HT201736

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About USB on Mac computers
This article shows You the different types of USB ports on your Mac. 
https://support.apple.com/en-us/HT201163

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How to reinstall macOS
This article shows you how to use macOS Recovery to reinstall the Mac operating system.
https://support.apple.com/en-us/HT204904

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How to create a bootable installer for macOS
This shows you how to create a bootable installer for macOS.
https://support.apple.com/en-us/HT201372

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Use Apple Diagnostics to test your Mac
This article shows you how to access and use Apple Diagnostics to test your Mac.
https://support.apple.com/en-us/HT202731

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Apple Diagnostics reference codes
This article shows You how to get more information about the reference codes shown in Apple Diagnostics test results.
https://support.apple.com/en-us/HT203747

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Upgrade or install memory in your Mac mini
This article shows you how to upgrade the RAM In your Mac mini.
https://support.apple.com/en-us/HT205041

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Install Windows 10 on your Mac with Boot Camp Assistant
With Boot Camp, you can install Microsoft Windows 10 on your Mac, then switch between macOS and Windows when restarting your Mac. * For Macs with Intel Processors.
https://support.apple.com/en-us/HT201468

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How to use Pro Display XDR with Boot Camp
You can use your Apple Pro Display XDR with Microsoft Windows on certain Mac models.
https://support.apple.com/en-us/HT205765

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Use external monitors with your Mac
Learn how to connect another display to your Mac and choose how your displays work together.
https://support.apple.com/en-us/HT202351

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 About macOS Recovery on Intel-based Mac computers
The utilities in macOS Recovery help you restore from Time Machine, reinstall macOS, get help online, repair or erase a hard disk, and more.
https://support.apple.com/en-us/HT201314

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How to repair a Mac disk with Disk Utility
Use the First Aid feature of Disk Utility to find and repair disk errors.
https://support.apple.com/en-us/HT210898

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Mac startup key combinations
Learn about the Mac features and tools that you can access by holding down one or more keys during startup. 
https://support.apple.com/en-us/HT201255

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How to erase your Mac
This article shows you how to use Disk Utility to erase (format) your computer's built-in disk (or SSD).
https://support.apple.com/en-us/HT208496

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Use an external graphics processor with your Mac
Your Thunderbolt 3-equipped Mac running macOS High Sierra 10.13.4 or later can access additional graphics performance by connecting to an external graphics processor (also known as an eGPU).
https://support.apple.com/en-us/HT208544

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Use Blackmagic eGPU with your Mac
Blackmagic eGPU and Blackmagic eGPU Pro are external graphics processors that give your Mac added graphics power for pro app workflows, gaming, VR creation, and more.
https://support.apple.com/en-us/HT208897

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Mac models with the Apple T2 Security Chip
This article shows you which model of Macs has the T2 Security Chip
https://support.apple.com/en-us/HT208862

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How to reset the SMC of your Mac
Resetting the system management controller (SMC) can resolve certain issues related to power, battery, fans, and other features. * For Macs with Intel Processors.
https://support.apple.com/en-us/HT201295

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Reset NVRAM or PRAM on your Mac
If your Mac has issues related to settings stored in NVRAM or PRAM, resetting it might help. * For Macs with Intel Processors.
https://support.apple.com/en-us/HT204063

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 How to use safe mode on your Mac
Safe mode can help you to determine whether an issue is caused by software that loads as your Mac starts up.
https://support.apple.com/en-us/HT201262

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If you can't download or update apps on your Mac
This article shows you what steps to take if You can't update or download apps on your Mac.
https://support.apple.com/en-us/HT211917

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If an app on your Mac stops responding, closes unexpectedly, or won’t open
This article shows You what to do when an app stops responding. 
https://support.apple.com/en-us/HT211916

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 Download apps from the App Store on your Mac
This article shows you how to use the Apple app store to obtain your favorite apps.
https://support.apple.com/en-us/HT203421