MacLife

Getting an update to stick

nsure you haven’t modified your System, for example by disabling SIP. If you can’t get Software Update to work,. If necessary, download and run the Combo updater. If none of those methods work, you may need to perform a clean reinstall. Make at least one complete backup and ensure that all your important files have been saved to it, then restart your Mac with the Opt+ Cmd+R keys held down on a wired keyboard, or from a bootable external copy of macOS 10.15.7. Open Disk Utility, select your startup System volume, by default named Macintosh HD, and click on the Erase tool. Format it in APFS with a GUID Partition Map, and enter your Apple ID if prompted.

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