macOS User Guide
- Welcome
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- Change System Preferences
- Change your desktop picture
- Add your email and other accounts
- Use a screen saver
- Change the picture for you or others in apps
- Set up other users on your Mac
- Set up Screen Time for yourself
- Change the system language
- Make it easier to see what’s on the screen
- Use accessibility features
- Run Windows on your Mac
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- Use Continuity across your devices
- Stream audio and video with AirPlay
- Use your iPad as a second display
- Hand off between devices
- Insert photos and documents from iPhone or iPad
- Insert sketches from iPhone or iPad
- Copy and paste between devices
- Use Apple Watch to unlock your Mac
- Make and receive phone calls on your Mac
- Control accessories in your home
- Send files between devices with AirDrop
- Use AirPods with your Mac
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- Manage cookies and other website data in Safari
- Use Private Browsing in Safari
- View privacy reports in Safari
- Understand passwords
- Reset your Mac login password
- Use keychains to store passwords
- Set up your Mac to be secure
- Guard your privacy
- Use Sign in with Apple for apps and websites
- Protect your Mac from malware
- Control access to your camera
- Find a missing device
- Resources for your Mac
- Resources for your Apple devices
- Copyright
If the wrong app opens when you insert a CD or DVD into Mac
If the wrong app opens when you insert a CD or DVD, you may need to change your settings in CDs & DVDs preferences or in the preferences of the app that’s opening. Also, the CD or DVD may not be the type you think it is.
You may need to choose what happens when you insert a disc. Choose Apple menu > System Preferences, click CDs & DVDs, then choose the actions you want from the pop-up menus.
Note: If you don’t have an optical drive built into or attached to your Mac, CDs & DVDs preferences aren’t available.
The disc you’re inserting may not be the type of disc you thought it was. For example, an app may not consider a CD that contains MP3 files to be an audio CD if you created the disc in the Finder.
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