If this is the case, try restarting your router or switching to another Internet connection. If you’re experiencing a poor internet connection while downloading the updates, it can cause the “An error occurred while installing the selected updates” issue. Contact a recovery service to get back up and running on your Mac.Contact Apple support for further assistance.Verify permissions and repair disk issues.Redownload the installer and try again.Quick tips to fix An Error Occurred While Installing The Selected Updates on Mac If that fails or if it is not an option, then you can continue with some of the following solutions to see if they work for you. If the message recommends a solution, such as redownloading the installer and trying again, please try that first before attempting any of these solutions. The error message “An error occurred while installing the selected updates” when trying to update macOS has several causes, and there are several potential solutions.
