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c. All PrimaryUser Macs will be automatically encrypted with FileVault. For more information, refer to What is FileVault.
d. All PrimaryUser Macs will come preinstalled with Admin By Request. For more information, refer to Using Admin By Request.
e. Self Service is an application used to install software and run fixes on Mac Computers.
f. The following error may occur if your device fails to connect to the internet. Please verify you have an active internet connection and select Try Again. You may be re-prompted for Location information at login later if your Mac fails to connect again. 
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