![]() Once you have done that, check the build number of Safari is now 15611.1.21.161.7 to ensure that you’re fully protected.Īpple released Big Sur 11.3 on 26 April 2021. Its security release notes are here, and a standalone installer package is available from here.Īpple strongly recommends all those using Catalina to install Security Update 2021-002 and update Safari to 14.1. Once you have done that, check the build number of Safari is now 14611.1.21.161.7 to ensure that you’re fully protected.Īnyone choosing to delay or deny either of these two important security updates needs to run additional security software to ensure that their vulnerable system is protected against these exploits: you’re on your own!Īpple released Catalina Security Update 2021-002 on 26 April 2021. An updated update now fixes those, and contains urgent fixes for two vulnerabilities affecting WebKit which Apple believes are already being exploited, as detailed here.Īpple strongly recommends all those using Mojave to install Security Update 2021-003 and update Safari to 14.1. Its security release notes are here, and a standalone installer package is available from here.Īpple also released an update to Safari 14.1, but the inital update contained some bugs which made it impossible to access some websites. This is a summary of what’s happened, and the updates available for Macs running Mojave, Catalina and Big Sur.Īpple released Mojave Security Update 2021-003 on 26 April 2021. ![]() If you need help, please contact Apple Support.A lot has changed in recent versions of macOS over the last couple of weeks. If your disk or volume still doesn't appear in Disk Utility, or Disk Utility reports that the erase process failed, your disk or Mac might need service.If you're erasing an external drive, make sure that it's connected directly to your Mac using a cable that you know is good.Shut down your Mac, then unplug all nonessential devices from your Mac.If your disk or volume doesn't appear, or the erase fails The Get Info window shows the Format of that volume. Select the volume in the Finder, then choose File > Get Info from the menu bar.The File System column on the right shows the format of each volume. Open System Information and select Storage in the sidebar.For more detail, choose File > Get Info from the Disk Utility menu bar. Select the volume in the Disk Utility sidebar, then check the information shown on the right.If you want to know which format is currently in use, use any of these methods: If you want your Mac to be able to start up from the volume you erased, reinstall macOS on that volume.You might be asked to enter your Apple ID. Otherwise, click Erase to erase just the selected volume. In that case, you should erase the volume group. If you see an Erase Volume Group button, the volume you selected is part of a volume group.Name: Type the name that you want the volume to have after you erase it.The volume your Mac started up from is named Macintosh HD, unless you changed its name. In the sidebar of Disk Utility, select the volume that you want to erase.If you're not erasing the volume your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder. How to erase a volume on your disk How To Format New Ssd If you want your Mac to be able to start up from the disk you erased, reinstall macOS on the disk.Click Erase to begin erasing your disk and every container and volume within it.Disk Utility shows a compatible format by default. Format: Choose APFS or Mac OS Extended (Journaled).Name: Type the name that you want the disk to have after you erase it.Click Erase, then complete these items:.Select the disk that you want to erase.In this example, Apple SSD is the startup disk: The disk your Mac started up from is at the top of the list. The sidebar now shows your disks (devices) and any containers and volumes within them. Choose View > Show All Devices from the menu bar in Disk Utility.If you're not erasing the disk your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder. Then select Disk Utility from the Utilities window and click Continue. Mac OS Extended (Journaled): Uses the Mac format (Journaled HFS Plus) to protect the integrity of the hierarchical file system. Choose one of the following Mac OS Extended file system formats for compatibility with Mac computers using macOS 10.12 or earlier.
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