Can you reactivate Instagram without notifying people that are tagged? You can reactivate Instagram through the following ways- The first way-(deactivate Instagram for some time) Open your Instagram. Enter your username and password. Tap sign in and logging into your account. Second way- (if account deactivated due to violated terms) Open Instagram and then the complaint form. Enter your name, username, email, phone number in the form. Enter your request and click on submit button. When Instagram accepts your request, it will reactivate your Instagram. The third way- (if you are having to troubleshoot problem) Try to log in with a username and password. If it is showing the wrong password, then you can reset it through your email. You can also re-install your Instagram and then try to log in.