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Just like with Windows, you first have to set up your work Mac for screen sharing. Press on the Apple Menu, and then press "System Preferences".
Open the “Sharing” preference panel and check the box next to “Screen Sharing.”.” Make sure that "Remote Management" is unchecked.
Click “Computer Settings…” and make sure “VNC viewers may control screen with password” is checked. Then enter a password to use. Please use between 4-8 characters and a combination of at least 1 uppercase letter, 1 lowercase letter, 1 symbol, and one number.
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