Set up Find My on Mac
Note: When you add your Mac to Find My, Activation Lock is automatically turned on.
Turn on Location Services
Turn on Location Services to allow Find My to determine your location.
On your Mac, choose Apple menu > System Settings, then click Privacy & Security in the sidebar. (You may need to scroll down.)
Click Location Services on the right.
Turn on Location Services, then turn on Find My in the list of apps.
Note: If you don’t see Find My, go to System Services in the list of apps, click Details, then turn on Find My Mac.
Turn on Find My Mac
Turn on Find My Mac in iCloud settings so you can locate, lock, or erase your Mac.
On your Mac, choose Apple menu > System Settings, then click [your name] at the top of the sidebar. If you don’t see your name, click “Sign in with your Apple ID” to enter your Apple ID or to create one.
Tip: If you forgot your Apple ID password, see the Apple Support article If you forgot your Apple ID password.
Click iCloud on the right, then click Find My Mac. (If Find My Mac isn’t in the list, click Show All.)
If the Find My icon has a warning badge , turn on Location Services first.
Click Turn On, then click Allow when asked to allow Find My Mac to use the location of your Mac.
Optionally, turn the Find My network on or off.
The Find My network is an encrypted, anonymous network of hundreds of millions of Apple devices that can help you locate your device, even when it’s offline.
Note: If you set up your Mac with multiple user accounts, Find My Mac can only be used by one user at a time.
Set up Find My on your other devices
You can remove your device from Find My at any time.
Note: Location sharing and finding devices aren’t available in all countries or regions.