6 easy steps to make IE9 (Internet Explorer 9) remember login and passwords
AutoComplete stores passwords and other info that you frequently type into web form fields, such as your name and address. You can choose when AutoComplete is used and how it saves passwords.
To change your AutoComplete settings
1. Open Internet Explorer.
2. Click the Settings button, and then click Internet options.
3. Click the Content tab.
4. Under AutoComplete, click Settings.
5. Select the check box "User names and passwords on forms" to allow to use AutoComplete and save passwords.
6. Click OK, and then click OK again.
Link to Microsoft Official Support Page: http://windows.microsoft.com/en-us/internet-explorer/fill-in-forms-remember-passwords-autocomplete#ie=ie-9