Windows OS stores your user names and passwords on your PC so that you don’t have to reenter the information for web sites and configured applications.
Start – Run –
Type “rundll32.exe keymgr.dll, KRShowKeyMgr” Click Ok
Stored User Names And Passwords Window will appear
Select and Click Remove to Remove any stored account information.
Start | Control Panel | User Accounts. Click the Advanced tab and then the Manage Passwords button.
To clear information from Internet Explorer, click Tools | Internet Options. Select the Content tab and click AutoComplete. Click Clear Forms and Clear Passwords. You should also remove all checkboxes on the AutoComplete screen.