Read the knowledgebase articles & know how to turn Internet Explorer enhanced security configuration off.

To turn off Internet Explorer Enhanced Security Configuration (IE ESC):

• Click 'Start' -> 'Administrative Tools' -> 'Server Manager'
• On the left hand pane click 'Server Manager (SERVERNAME)'
• On the right hand pane in the 'Security Information' section you will see the option 'Configure IE ESC' - click on it.
• You can then turn off IE ESC for Administrators or Users.