If you want to delete your Instagram account without knowing the password, there are a few ways to go about it. The first option is to visit Instagram’s website and sign in. Once you’re logged in, click on the three lines in the top left corner of the screen and select “Account Settings.” On the next page, under “Account Details,” scroll down until you see “Deactivate Your Account.” Click on this link and follow the instructions that appear onscreen. If you want to delete your account but don’t want to lose all of your photos and videos, you can also try using a third-party app. For example, InstaDeleter is an app that lets you delete your account without losing any photos or videos. whichever method you choose, be sure to back up your photos and videos before deleting your account so that you can access them if you decide to reinstate it later on ..