How To Install Macos Big Sur On A Mac Lion 10.7. double click the .dmg file to open it and see the package (.pkg) file within. double click the .pkg file, then follow the onscreen instructions to install the macos installer into your applications folder. open your applications folder and double click the macos installer, named install [version name]. Turn on the mac, then immediately press and hold the option (alt) key. release the option key when you see a dark screen showing your bootable volumes, including the bootable installer. select the bootable installer. then click the onscreen arrow or press return.
How To Download And Install Macos Big Sur Tom S Guide Good news you can download and install macos 11 big sur right now. you should receive a notification that a new update is available, but if you haven't seen it, you can check under system. After this, you're ready to actually install macos big sur. that means carve out some time for it to install, as these things tend to take a while. 4. click the apple logo in the top left corner. Complete a full backup of the mac, with time machine or your backup method of choice. head to the mac app store and choose “get” to trigger the upgrade process for macos big sur. from system preferences, choose “upgrade now” *. let macos big sur download, when finished a splash screen to install it will launch automatically **. How to get macos big sur. when the general release is out, your mac should tell you there is an update available. all you have to do is click install now on the notification and macos will do the.
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