SharePoint consistently prompting for user credentials

When SharePoint bugs you to enter user name and password again and again at the time of login then you can solve it by following the step described below :

• In IE, go to 'Tools'
• Click on 'Internet Options'
• Open 'Security' tab
• Click on 'Custom level'
• Scroll down and select 'Automatic logon with current username and password'
• Click ok