Sarah Jacobson 
iCloud is Apple’s cloud service to keep files, apps and other data in sync with multiple Macs and iOS devices. iCloud devices can be shared by multiple users, even in a family plan. A device will show up in your iCloud account as long as you have set up the device at least once before. If someone else has been using the device, or if you were using it on a different iCloud account, then it would show up in that account too.
With multiple devices syncing data with your iCloud account, it’s possible to have duplicates of the same content across all devices. There could be instances when you want to remove a device from your iCloud account so that it stops syncing with your account.
how to disconnect my iphone from my mac?
In order to remove a device from iCloud, open the “System Preferences” window from your dock. If you are using a Mac, click on the “iCloud” icon in System Preferences and enter your Apple ID password when prompted. In the iCloud preferences window, click on the tab named “Devices.” This will show all of the devices currently registered with your iCloud account.
Select the device’s icon and click on the button labeled “Remove [Name of Device].” You will then be prompted to enter your Apple ID password for confirmation, after which the device will be removed from your iCloud account.
Go to icloud.com and sign in with your Apple ID.
You should see only the devices that are currently registered with your iCloud account in System Preferences. If you do not see any devices listed in the window, then make sure you are signed in to iCloud with the correct Apple ID by opening http://www.icloud.com/ in a web browser and logging in with your Apple ID. Once you have logged in, go back to System Preferences and check for the device(s) that are currently registered with your iCloud account.
Click on the “Settings” icon at the top of the page
Switch to the “Mail, Contacts & Calendar” tab. This section will show all of the current iCloud email addresses connected with your account. Click on the address that you wish to remove and click on “Delete Account.” You will be asked for your password to confirm that you want to delete this email address.
You should now see only the devices that are currently registered with your iCloud account in System Preferences. If you do not see any devices listed in the window, then make sure you are signed in to iCloud with the correct Apple ID by opening http://www.icloud.com/ in a web browser and logging in with your Apple ID.
Find the device you want to remove and click on it.
Scroll down to the bottom of the screen and you will see a section for “Allow This Computer” choose “Don’t Allow.” You should now see only the devices that are currently registered with your iCloud account in System Preferences. If you do not see any devices listed in the window, then make sure you are signed in to iCloud with the correct Apple ID by opening http://www.icloud.com/ in a web browser and logging in with your Apple ID.
Once you have removed a device from your iCloud account, it will no longer be allowed access to your iCloud data and files and any local data on that device will be deleted as well.
Conclusion
iCloud is not just an online backup service, it can also be used to share data between multiple devices. iCLoud provides options to use the same iCloud account on multiple Macs and iOS devices or using separate accounts for each device. If you ever want to remove a device from your iCloud account, simply access System Preferences and select the device you want to remove. You will be prompted for your iCloud password and the device will be removed shortly after. If you found this post helpful, feel free to leave a comment below with any questions or concerns about removing devices from your iCloud account.
