To open Notification Center, click in the upper-right corner of your screen, or swipe left with two fingers from the right edge of your trackpad.
Oct 01, 2017 My iPad screen goes crazy. CHANGE YOUR CHARGING CABLE. Use a can of air and clean the area on iPad where you connect cable. The cable MUST FIT PROPERLY and securely. May 30, 2017 Why does my Mac quack or pop? Turn Off Popping Sound / Quack When Changing Volume. If you’d like to change your Mac computer volume in silence, you can turn off the auditory feedback on volume changes – a pop on modern Mac releases, a quack on older system software. This is one of those feature that’s either loved or hated, I personally like the volume feedback but I know some other Mac.
Enable junk mail filtering. Turn Mail’s junk mail filter on or off. If your email account filters junk mail on the mail server, messages might be moved to the Junk mailbox even when this option isn’t selected. Mark as junk mail, but leave it in my Inbox. Highlight junk mail with color and leave it. Delete the app preference file. Plist files can become corrupt when a Mac shuts down or restarts unexpectedly or when an app freezes or crashes. As a result, the app may not open. When you delete a bad preference file, the Mac creates a new plist file that contains all the app's defaults automatically.
You can also control other features here, such as whether notifications appear on your lock screen or include a preview. A preview contains a portion of the email, chat, or other content associated with the notification. You can choose to show previews never, always, or only when you unlock your Mac.
To allow or disallow notifications for specific websites, or to prevent websites from asking for permission to send notifications, learn how to customize website notifications in Safari.
Do Not Disturb silences incoming calls and notifications. It automatically turns on when your Mac is connected to a TV or projector.
To choose when Do Not Disturb turns on and off, choose Apple menu > System Preferences, then click Notifications. Do Not Disturb settings are at the top of the sidebar:
For more information about Notifications, click in Notifications preferences.