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Here's how to set up and use Find My Mac!

How to enable or disable Find My Mac

You have to set up Find My Mac before your Mac goes missing; otherwise, it's useless. You'll first need to make sure your Location Services are enabled:

1. Launch System Preferences on your Mac.

2. Click Security & Privacy.

   Source: iMore

3. Click the lock in the bottom left to make changes.

   Source: iMore

4. Use Touch ID or enter your password when prompted.

   Source: iMore

5. Check off the box next to Enable Location Services to turn it on.

   Source: iMore

Now enable Find My Mac:

1. Launch System Preferences on your Mac.

2. Click Apple ID in the upper right.

   Source: iMore

3. Check off the box next to Find My Mac to turn it on.

   Source: iMore

4. Confirm that you want to enable Find My Mac.

Now when you sign into iCloud.com on another computer or use the Find iPhone app on your iPhone, you'll be able to find and erase your lost or stolen Mac, as long as it is powered on and connected to Wi-Fi. Just make sure you sign in with the Apple ID that's in use on your missing Mac.

How to locate your Mac using Find My Mac on the web

If you don't have an iPhone, you can use another computer to track your lost or stolen Mac by signing into iCloud on the web.

1. Go to iCloud.com.
2. Enter your Apple ID and password to sign in. To find your Mac, make sure you sign in using the same Apple ID that you used on your Mac.

3. Click Find iPhone.

   Source: iMore

4. Enter your Apple ID password.

5. Click Sign In.

   Source: iMore

6. Click All Devices at the top of the page.

   Source: iMore

7. Click your Mac in the list of devices.

   Source: iMore

Your Mac will now show up on the map as a green dot, showing its exact location. If it's really nearby (like you think it might be in your house), you can click Play Sound, and it'll ring out. Though, how you'd lose your Mac in your house, I have no idea. The sound will definitely alert whoever has stolen it that you've found it.

How to Lock your Mac

If you're pretty sure you've just lost your Mac and it hasn't been stolen, but you want to make sure no one tries to access its content, you can lock that bad boy down. Just remember, if you lock your Mac remotely, you can't erase it (which you would want to do if you know for sure that it is stolen).

1. Go to iCloud.com.
2. Enter your Apple ID and password to sign in. To find your Mac, make sure you sign in using the same Apple ID that you used on your Mac.

3. Click Find iPhone.

   Source: iMore

4. Enter your Apple ID password.

5. Click Sign In.

   Source: iMore

6. Click All Devices at the top of the page.

   Source: iMore

7. Click your Mac in the list of devices.

   Source: iMore

8. Click Lock in the pop-up.

   Source: iMore

9. Click Lock to confirm. Remember that once you lock your Mac, you cannot erase it.

   Source: iMore

How to erase your Mac

If you're sure your Mac has been stolen, and you're sure you are never getting it back, you should erase the contents so that ne'er-do-wells that might benefit from having your personal data won't have a chance.

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1. Go to iCloud.com.
2. Enter your Apple ID and password to sign in. To find your Mac, make sure you sign in using the same Apple ID that you used on your Mac.

3. Click Find iPhone.

   Source: iMore

4. Enter your Apple ID password.

5. Click Sign In.

   Source: iMore

6. Click All Devices at the top of the page.

   Source: iMore

7. Click your Mac in the list of devices.

   Source: iMore

8. Click Erase Mac in the pop-up.

   Source: iMore

9. Click Erase to confirm. All content and settings will be erased from your Mac, so make sure you're sure.

   Fix refind after software update mac. I have rEFInd installed on the EFI partition of my 2015 MacBook Air. Every time I update macOS, it ends up taking over the bootloader and resetting it to using the macOS operating system. Afterwards, if I hold the option key while booting up my mac, there is no boot option for rEFInd that I can select. The only way I can bring rEFInd back is to boot up into recovery mode, manually mount my system partition with Disk. Nov 25, 2017  If you have a second Mac, then you can use createinstallmedia to create a bootable High Sierra USB key. Within the installer there is an option for 'Startup Volume'. Open it, and click your APFS volume. The original Apple bootloader will be restored. Aug 09, 2019  Following a system update, macOS blesses the system partition as default boot volume. If you have not tried automate-eGPU EFI, give it a shot. I like it better as an EFI Boot loader. external graphics card builds. Jun 16, 2013  You can use the 'bless' command to re-bless rEFInd. See the installation instructions for details, and in particular step #8. $ sudo apt-add-repository ppa:rodsmith/refind $ sudo apt-get update $ sudo apt-get install refind. Warning: I know of one bug with the version of rEFInd built with GNU-EFI: On my 32-bit Mac Mini, the filesystem drivers hang when launched. This can render the system unbootable until you bypass rEFInd.

   Source: iMoreEdison mac software getting starter.

Questions?

Got a question about finding your Mac? Let us know in the comments below!

Updated December 2019: Updated for macOS Catalina.

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