If you have an Instagram account and remember a person’s username and password, it’s easy to remove that account from your computer. To do this, open Instagram and sign in with your username and password. Then, click on the three lines in the top left corner of the main screen (the one that looks like a gear wheel) and select “Remove Account.” This will take you to a page where you can choose which account to remove. If you forget someone’s username or password, it’s best to keep their account active so they can still see their posts and follow friends.