How to change Plesk Panel User Password
Follow the below mentioned steps for changing the Administrator "Domain Password".
Step 1: After logging in to your plesk panel click drop down beside the humanoid icon on the right side the click edit profile
Step : 2 In My Profile, you need to select General tab, then type the password or you can generate the password using Generate button.
Step 3: Click on OK to apply the password and you can login using your new credential's.