If you want to delete someone else’s Instagram account, there are a few steps you need to take. First, open the Instagram app on your phone and go to the profile of the person you want to delete their account from. Next, tap on the three lines in the top left corner of their profile and select “Settings.” From here, you’ll need to scroll down and find “Account Settings.” Tap on this and then under “Account Type” select “Private.” Now, under “Delete Account” select “Yes.” ..