Password for Advanced setup | ESET NOD32 Antivirus | ESET Online Help To protect the setup paramaters of ESET NOD32 Antivirus in order to avoid unauthorized modification, a new password must be set. When you want to change an existing password: 1. Type your old password in the Old password field. 2. Enter your new password in the New password and Confirm password fields. 3. Click OK.