How do you find a lost MacBook?

To find a lost MacBook, use the "Find My" feature if it was enabled before the device was lost. Access iCloud.com or the Find My app on another Apple device, sign in with your Apple ID, and select your MacBook from the list of devices. You can then view its location on a map, play a sound to help locate it, or enable "Lost Mode" to lock it and display a message. If the MacBook is offline, you can still receive a notification when it comes online.