Every time I try to upgrade into a MacOS Big Sur, once I click upgrade and there is an option to download, and I click download, then there always a message tells An error occurred while installing the selected updates. how can I solve the problem?
Every time I try to upgrade into a MacOS Big Sur, once I click upgrade and there is an option to download, and I click download, then there always a message tells An error occurred while installing the selected updates. how can I solve the problem?
MacBook Pro 13″, macOS 10.15