If you’ve ever had to remove someone else’s Apple ID from your Mac, you know it can be a pain. Here’s how to do it without any fuss. ..
How to Delete a User Account on Mac?
Follow the instructions in this guide to deactivate your Apple ID. 1. First, make sure you’ve signed out of your iCloud account synchronized with your Mac.
Sign in to iCloud.com. Go to Find My iPhone. Select “All Devices” to view a list of linked devices, then choose the one you want to be deleted. Select “Delete from Account.
To delete an app, simply press and hold it until it jiggles. Then touch the ‘X’ in the corner of the App to confirm your deletion. You won’t be able to remove someone else’s Apple ID.
To erase your iCloud account and disable Apple’s activation lock, follow these steps. You may restore your data after the factory reset if you know your Apple ID and password
You won’t find it at Apple or any other place. You’ll need to contact the previous owner, either through the individual, you bought the phone from or not. Because of privacy concerns, neither Apple nor the mobile carrier is permitted to disclose any of that data.