You can change how long the notification alert banners show on screen on the Mac, as this article will show. First, it’s important to differentiate between “Banners” and “Alerts”; a banner will slide in and slide out of the Mac screen without interaction (or you can swipe on it to dismiss), while alerts require some sort of user involvement with manually closing or rescheduling the. The Raspberry Pi is a tiny and affordable computer that you can use to learn programming through fun, practical projects. Join the global Raspberry Pi community. Global Nav Open Menu Global Nav Close Menu; Apple; Shopping Bag +.
Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:
Turn on your Mac and continue to press and hold the power button until you see the startup options window. Click the gear icon labeled Options, then click Continue.
Make sure that your Mac has a connection to the internet. Then turn on your Mac and immediately press and hold Command (⌘)-R until you see an Apple logo or other image.
If you're asked to select a user you know the password for, select the user, click Next, then enter their administrator password.
Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions.
Follow these guidelines during installation:
After installation is complete, your Mac might restart to a setup assistant. If you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.
When you install macOS from Recovery, you get the current version of the most recently installed macOS, with some exceptions:
You can also use these methods to install macOS, if the macOS is compatible with your Mac: